Wifi issues - Redmi 7A Questions & Answers

Wifi is very unstable, and runs in short streams, with lots of lost packets, making voip calls with various softphones (Groundwire, Linphone...) almost impossible (mostly with outgoing data). If you turn on bluetooh is worse, as speed lows to kilobytes. I have read more users with the same problems. Is there here anyone who knows a workaround? Thanks

Did you root/flash your 7A, there were reports that if wrong boot.img/ROM is used such similar wifi issues happen. otherwise run wifi scan, be sure the channel used is FREE from any next door friends, these things change all the time, who knows, maybe your next door friend read something similar and changed their channel to yours
good luck.

stormy1777 said:
Did you root/flash your 7A, there were reports that if wrong boot.img/ROM is used such similar wifi issues happen. otherwise run wifi scan, be sure the channel used is FREE from any next door friends, these things change all the time, who knows, maybe your next door friend read something similar and changed their channel to yours
good luck.
Click to expand...
Click to collapse
I didn't root it. It is brand new (about 3 weeks ago, bought in amazon Spain). I bought two, for me and my wife, and both have the same issues. I have tried in different places with different routers that have different chipsets (qualcomm, ralink, etc), with the same results. Wifi has a lot of jitter and microcuts (micropauses), and extremely low if bluetooh is enabled (paired or unpaired). Most issues in wifi outgoing data, making voip calls (my big problem as I need it for my work), impossible.
Of course I have tried in different channels from 1 to 13 (12 and 13 are allowed in Europe), in 20 and 40 mhz, with and without short guard....
Thanks for your answer.

@jjmmpprr it sounds like you know what you're doing Do you have tool(s) that show this issue? like wifi analyser that shows DROPS (in graph mode), or similar high-ping, or what not.. from my end i cannot really confirm any drops, haven't used phone much yet. Recently i did find they have a constant tcpdump:
system 10516 2161 0 21:58:31 ? 00:00:00 com.huaqin.diaglogger
root 10541 1 1 21:58:31 ? 00:00:05 tcpdump -i any -W 2 -C 2 -s 134 -w /sdcard/MIUI/debug_log/common/tcpdump.pcap
Click to expand...
Click to collapse
if you disable that app, the tcpdump stops, check that location and see.. it might not be the WIFI, but some OTHER "bloatware" that runs DURING the wifi/call/voip, and draining cpu/memory... so causes these apparent wifi distractions.. run some process monitor, maybe from ssh, and see, also look in logcat, there are many hints there. good luck, maybe others know more.

Related

GPS Reception is terrible

Just curious if anyone else has issues with GPS reception on their sprint touch. I upgraded to the latest htc rom earlier in the week and everything is great except I cannot get GPS to hook up - I've had it work only once.
i upgraded too and i'm using GPS with GoPilot Live, iGO8 and Garmin Mobile XT and it works without issue.
what GPS program are you using with your touch?
Google maps is the only application i've tried. It will search (and search, and search) but doesn't find any or only 1 sat.
Make sure all your settings are correct and try using something like GPS Viewer to get the initilal lock.
Any hint on which settings, and what the the correct values for those settings would be?
Thanks for the tip on GPS Viewer - I will def check it out!
Thanks,
Tim
First, make sure you have the proper Radio/ROM, I assume you do.
Second, under System Settings>External GPS
Programs>COM4 Port
Hardware>(None) Baud Rate>4800
Access>Check Manage Automatically
Third, under Personal Settings>Phone
Services>Location Setting>Location On
Fourth, the Registry
I know of only one value that may help if you change, there are more, but haven't seen them, and I believe it's different on some carriers, like Sprint
HKCU>Software>HTC>SUPL AGPS>GPS Mode
For the inital sat lock, make sure you stand outside on a clear sky and wait at least 5 min, if it takes that long.
The first time I did this, I was trying from inside, finally tried it outside after 3 days of no luck, but now it works quite well. I usually get connected under 30 seconds. As long as your in the same area when you reconnect it should be quick, the first is usually the longest. And I personally use LiveSearch for the directions.
Change from 2 to either 4 or 1, this may help, never really guarenteed though
I was in Boston this weekend and noticed the GPS on my Touch would not lock in a signal in the financial district surrounded by tall buildings. But when I have a clearer view of the sky it works fine. Are you in an open area when you are using it?
hapa_dude said:
I was in Boston this weekend and noticed the GPS on my Touch would not lock in a signal in the financial district surrounded by tall buildings. But when I have a clearer view of the sky it works fine. Are you in an open area when you are using it?
Click to expand...
Click to collapse
It surely helps! Any obstructions will make it harder to pickup the signal.
TheChampJT said:
First, make sure you have the proper Radio/ROM, I assume you do.
Second, under System Settings>External GPS
Programs>COM4 Port
Hardware>(None) Baud Rate>4800
Access>Check Manage Automatically
Third, under Personal Settings>Phone
Services>Location Setting>Location On
Fourth, the Registry
I know of only one value that may help if you change, there are more, but haven't seen them, and I believe it's different on some carriers, like Sprint
HKCU>Software>HTC>SUPL AGPS>GPS Mode
For the inital sat lock, make sure you stand outside on a clear sky and wait at least 5 min, if it takes that long.
The first time I did this, I was trying from inside, finally tried it outside after 3 days of no luck, but now it works quite well. I usually get connected under 30 seconds. As long as your in the same area when you reconnect it should be quick, the first is usually the longest. And I personally use LiveSearch for the directions.
Change from 2 to either 4 or 1, this may help, never really guarenteed though
Click to expand...
Click to collapse
I was having problems with mine too until I did the 4th one and changed it to a 1 from 2 and it works much better. Try it and see you can always turn it back to 2
This helped me
http://www.sprintusers.com/forum/showthread.php?t=173024
My apologies if this has already been posted somewhere. I did a search and came up empty...
So like a lot of people, I've been having some major problems with the GPS's reliability on the Touch (yep, last week's flavor of the week). It connects only when it feels like it, and numerous resets seem to temporarily solve the problem. Well, changing the following registry value seemed to solve all of my problems:
[HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{7C4B7A3 8-5FF7-4bc1-80F6-5DA7870BB1AA}\Connections\Phone as Modem]
"Enabled"=dword:00000000"
Change the value to 0, and soft reset.
It appears that the GPS, by default, makes use of the "Phone as Modem" data connection to take advantage of aGPS, but if a "Sprint PCS" data connection is already active, the GPS doesn't swap connection methods and ultimately hangs. This problem is exacerbated if you have Push services or other data connections running.
I personally haven't noticed any problems with disabling PAM, but as usual, your mileage will vary. For me, I get GPS locks within 15 seconds when I'm in a reasonably accessible location, and I no longer have to reset-and-pray to get this thing working.
bill22 said:
http://www.sprintusers.com/forum/showthread.php?t=173024
Click to expand...
Click to collapse
My apologies if this has already been posted somewhere. I did a search and came up empty...
So like a lot of people, I've been having some major problems with the GPS's reliability on the Touch (yep, last week's flavor of the week). It connects only when it feels like it, and numerous resets seem to temporarily solve the problem. Well, changing the following registry value seemed to solve all of my problems:
[HKEY_LOCAL_MACHINE\Comm\ConnMgr\Providers\{7C4B7A3 8-5FF7-4bc1-80F6-5DA7870BB1AA}\Connections\Phone as Modem]
"Enabled"=dword:00000000"
Change the value to 0, and soft reset.
It appears that the GPS, by default, makes use of the "Phone as Modem" data connection to take advantage of aGPS, but if a "Sprint PCS" data connection is already active, the GPS doesn't swap connection methods and ultimately hangs. This problem is exacerbated if you have Push services or other data connections running.
I personally haven't noticed any problems with disabling PAM, but as usual, your mileage will vary. For me, I get GPS locks within 15 seconds when I'm in a reasonably accessible location, and I no longer have to reset-and-pray to get this thing working.
Link not working, repost.
hate to tell you this, but if you are using the builtin GPS, a clear view of the sky does nothing to improve your gps position locking. our phones have AGPS which means it is fake GPS. It uses the distance from cell towers to triangulate your position, not satellites. Thats why you can get a lock inside with no view of the sky.
some ROMs have different settings on them so following the above directions should work. Or you can do like me and find a better ROM

Nexus 4: radios behaving badly

The one thing that's keeping me from fully enjoying my new Nexus 4---hassles with radios, both wifi & cellular.
1) On my home wifi network on all devices except the Nexus 4 I see solid, constant download speeds of 25Mbps. My Nexus 4 consistently only gives me 4-6Mbps. If I disconnect/reconnect sometimes I can see speeds slightly higher than that, but only temporarily. This isn't generally a huge deal because 4-6Mbps is fast enough for most things on a phone, it just bugs me that every other device in the house gets 25Mbps.
2) Of bigger annoyance is my cellular data connection, it drops off multiple times per day. The cellular signal strength indicates full bars, along with the 'H' icon indicating I'm connected to T-Mobiles HSPA+ network. Voice still works fine but the data connection is dead--nothing will connect--Speedtest, maps, Google Search, Facebook, etc. This forces me to either turn on/off Airplane mode or reboot the phone completely to regain my cellular data connection. On my previous SGS2 I never experienced this issue. It drives me nuts to not be able to pull up a phone number, directions etc at the times I need it most.
Does anybody have any similar experiences or suggestions on how to remedy these issues?
Edit---FYI I'm fully stock but rooted. 4.2.1 update not yet applied.
1) Check APN settings and make sure your account is properly provisioned by calling T-Mo CSRs. I had a similar issue with my Nexus One back in the day that was fixed with a reboot after they reprovisioned my account.
2) Flash factory image, in case it was a bad flash of the radio. It happens.
3) If 1 & 2 fails, or you don't want to try #2, call the Nexus hotline and get yourself a replacement.
ATnTdude said:
1) Check APN settings and make sure your account is properly provisioned by calling T-Mo CSRs. I had a similar issue with my Nexus One back in the day that was fixed with a reboot after they reprovisioned my account.
2) Flash factory image, in case it was a bad flash of the radio. It happens.
3) If 1 & 2 fails, or you don't want to try #2, call the Nexus hotline and get yourself a replacement.
Click to expand...
Click to collapse
Called TMobile and had them reset my account, I'll keep an eye on it the next couple of days.
Right now I'm downloading a cached Google map via WiFi and it is slooooow.
I also notice on edge the signal is inconsistent.
Hi
The Wi-Fi issue is something happening to others, seems to be a driver bug.
http://code.google.com/p/android/issues/detail?id=40306
Regards
Phil
Wifi connectivity is my biggest gripe. I'll step 6 feet away from my router and I lose a bar. A couple rooms away I fluctuate between 1 and 0 bars.
Sent from my Nexus 4 using xda app-developers app
Did you ever find a cure for this? I am having the exact same issues on my O2UK Nexus 4, anytime I want to use the data connection its almost guaranteed not to work and involve reboots, Airplane mode on and off etc
Im having the same issues. My data just drops wifi and cellular. I dont get full signal wifi or cellular. I live in india and flashed the latest .54 which was released in india recently. I managed to at least get cellular data going but my strength still low and data drops still on both wifi and cellular. Its super frustrating. Any ideas?
try reflashing the OS on your phone and try changing the wifi channel on your router.
changing the channel on my wireless router really helped signal to all of my devices. there may be lots of interference on the channel you're on.
SeraldoBabalu said:
try reflashing the OS on your phone and try changing the wifi channel on your router.
changing the channel on my wireless router really helped signal to all of my devices. there may be lots of interference on the channel you're on.
Click to expand...
Click to collapse
I may reflash OS but i just got the phone today so ill slow down a bit. I flashed the radio one would think that would be enough? Anyway I have many other devices on my wifi without an issue and i used wifi analyser and theres no overlap with other routers and i experience this on 2g 3g and wifi so it looks like some modem problem. Unfortunately the phone was bought 3 months ago in the States and im here in india so im kind of stuck
There are known issues with the Nexus 4 wifi speeds slowing for no apparent reason. Also, known issues with the LOS (loss of signal). You can find information and bug reports on both of these issues.
ingenious247 said:
There are known issues with the Nexus 4 wifi speeds slowing for no apparent reason. Also, known issues with the LOS (loss of signal). You can find information and bug reports on both of these issues.
Click to expand...
Click to collapse
I dad see some threads reporting this issue. Unfortunately i dont see any solutions or resolved threads. Additionally people either have it they dont as i see it i cant see people witching sides. Its just a little frustrating. Any opinions on whether kernel swapping will help?
Did a full flash from scratch. No progress. Also i went to my friends place and signal was perfect for like 4 hrs straight but every other place ive been since has seen choppy signal.
nvillamob said:
Wifi connectivity is my biggest gripe. I'll step 6 feet away from my router and I lose a bar. A couple rooms away I fluctuate between 1 and 0 bars.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Pretty bad. I ran a test a few weeks ago and I can go up to 450 feet from my router (old Linksys) without a problem, and after that it gets iffy, and finally disconnects at 500 feet. I am seeing an average of 20 Mbps on wifi. Now if I can only get my cellular connection (non-wifi) to go faster than 1 Mpbs max I would have a usable phone.
I have a slightly diff issue.
If I reboot my phone, I connect to my router no problem. If I turn wifi off (to save battery) and then turn it back on.... it shows my AP's as out of range.... but I do see my neighbours AP's. I also have an N10 with has no issues at all with wifi (and none of my other divises have issues either).
When I bought the N4 they seemed to be having an issue with it when setting it up.... but I was not paying close attention. I am wondering if I have a bad phone on top of the "normal" wifi issues that other are experiencing.
Think I will revert back to stock and swap it for another phone to see if I can at least just turn off / on the wifi rather then reboot to connect (how sad is that?)
OldGaf said:
I have a slightly diff issue.
If I reboot my phone, I connect to my router no problem. If I turn wifi off (to save battery) and then turn it back on.... it shows my AP's as out of range.... but I do see my neighbours AP's. I also have an N10 with has no issues at all with wifi (and none of my other divises have issues either).
When I bought the N4 they seemed to be having an issue with it when setting it up.... but I was not paying close attention. I am wondering if I have a bad phone on top of the "normal" wifi issues that other are experiencing.
Think I will revert back to stock and swap it for another phone to see if I can at least just turn off / on the wifi rather then reboot to connect (how sad is that?)
Click to expand...
Click to collapse
**** UPDATE ****
I picked up a cheap belkin router and set it to AP mode.
My N4 has no issues at all with it. Connects when I want it to right away and is fast / solid connection.

[Q] i9505 issues: Wifi, BT and SD-card reader

Dear XDA,
I am in need of your help. My 2 Samsung Galaxy S4 i9505 doesn’t work properly:
- Wifi reception is bad
- Bluetooth reception cripples sometimes
- SD-card reader often doesn’t work
1. The wifi reception can go from -62dBm to -75dBm at ≤1 meter and from -80dBm to -90dBm at +3 meters in distance. Once at ± 1m behind a wall, the reception is almost none existing. This happens when connected to 2.4GHz, while 5GHz reception seem to work better but not yet preferable.
2. Bluetooth work fine most times especially with BT-speakers and BT-receivers. Sometimes the sound gets choppy and it’s nearly unusable with BT-headsets and BT-earphones. Also the file transfer suffers alot.
3. The SD-cards mount and unmount randomly. Sometimes it can work for a whole day and other times not at all for a few days.
Everything had worked once, until I had dropped my phone and the screen cracked. After I had repaired it, I immediately updated to 5.0.1 Lollipop and didn’t realize the issue untill a few hours later. 3G, HSDPA and 4G seem to work fine, the speedtest, and the in- and outdoor reception function as it always has, just fine.
The thing’s I’ve tried:
- Google the issue’s with Lollipop
- Install various roms (incl. KitKat) and kernels
- Try original roms and unroot
- Replace the Wifi-antenna
- Replace the SD/SIM-card module
- Try different AccesPoints and routers and settings
- Try different SD-card and different brands
Can anyone help me? Because I am out of ideas.
http://forum.xda-developers.com/galaxy-s4/help/poor-bluetooth-wifi-reception-t3100816
Maybe you can try that. Sound pretty similar.
Lennyz1988 said:
http://forum.xda-developers.com/galaxy-s4/help/poor-bluetooth-wifi-reception-t3100816
Maybe you can try that. Sound pretty similar.
Click to expand...
Click to collapse
I already have tried that as one of the first troubleshooting attempts.
No more ideas? Anyone? *bump*

GPS Issues with X Play

Hey People,
I got my X Play around 20th October and been using since. The GPS was amazing first few days but for the past 10-12 days, it has been iffy at best and completely non-functional at worst.
Sees satellites but does not lock. When it does lock, SNRs are pretty low and accuracy is in the range of 40-50m while driving sometimes, and 7m other times. Ditto with standing at the same spot. Most of the time it would just not lock; and the Google location service would show me 50Km away from where I really am.
Anyone else experiencing these issues? I'm kinda drawn right now in pin pointing a software or hardware issue... My 30 day return is wrapping up tomorrow so there's no real time for factory reset and test extensively. :-/
Used it today for around 150 miles. No issues at all and not had any in previous tests. I know that doesn't help your situation but it will help bump it for now.
Sent from my XT1562 using Tapatalk
No problems here so far, but try this https://play.google.com/store/apps/details?id=com.eclipsim.gpsstatus2
You can use it to reset it or download A-GPS data
I'm facing the exact same issue as the OP. Installed GPS Status, resetted, downloaded new data.... Still the same.
Can anyone help?
Try going into fastboot and apply "fastboot erase modemst1" and "fastboot erase modemst2" through the cmd of your computer. Of course open a cmd in the folder that contains your fastboot.exe or add it to your PATH on Windows and then run those commands with your device connected and in fastboot mode.
mausv said:
Try going into fastboot and apply "fastboot erase modemst1" and "fastboot erase modemst2" through the cmd of your computer. Of course open a cmd in the folder that contains your fastboot.exe or add it to your PATH on Windows and then run those commands with your device connected and in fastboot mode.
Click to expand...
Click to collapse
Thanks. Do I need to take a backup before this? Does this need root?
boogey_man said:
Thanks. Do I need to take a backup before this? Does this need root?
Click to expand...
Click to collapse
Backup would be recommended but no necessary, and no root is needed for this process.
I have big Problem with gps, i can see up to 25 satellites but not getting a fix at all. Tried all apps who update the a gps data but still no fix. All Satellites in view have an snr of 0. Could my gps be broken ? Is there anything related to gps which could be broken, read about pulling sim helped for some people ? Could something with my modem be not ok. Came from a Single sim and flashed dualsim software and its working.
I got the same problem. It's a hardware defect. Just head to Motorola's customer service and, with some luck, get a fix.
It works fine for the most part, but one day it completely failed to work for several hours (running mendhaks GPSLogger). That and some other random force closes with Google Voice or the contacts app lead me to believe the phone simply has to be rebooted every other day or it starts acting funny.
I noticed problems with GPS too. Find GPS fix takes very long (tens of seconds) and the signal is unstable. GPS in my phone is useless. Phone was in service (authorized) but it didn't help (they reflashed firmware - I use stock Android 6.0 all the time). How can I fix it?
Same here. Any solution?
Just to add my.2 cents... I was never able to use Google maps back in the days with my Nexus 5. It would just act weird all the time. Since x play I have used maps extensively for work. Sometimes 12 +hours running all over town here in Ottawa. Even used copilot alongside to create a fastest itinerary with 40 different addresses or more and then used maps to navigate to eàch individual addresses one after the other. Never had a single problem with lollipop, marshmallow or 6.0.1 (used it again today) and never toggled on the option for better accuracy (ie scanning for WiFi or Bluetooth). It was always fast and quite accurate. On rare occasions, I had to reboot the device to get my first lock but other than that no issues whatsoever. And I would leave Google maps on all day in the truck for easily 12 hours through the day while doing my deliveries and still had battery at end of the day when I got home. Used my phone to also check my Facebook or email and make calls here and there through the day. No issues for me. Hope you get your issue resolved ?
For me, occasional GPS issues started with the Android 6.0.1 Update. So far I have not found a solution that sticks. Deleting the modemst helps about as much as a reboot, meaning it works afterwards, but the issue returns after a while. No idea what's going on here, since the GPS works flawlessly...when it works...
For many Motorola devices GPS doesn't work when connected to a 3g network. No problem when connected to 2g, 4g, WiFi, data disabled or no network. For this cases follow bellow steps:
You need to replace /system/etc/gps.conf by a valid configuration. Just
search in Google by "Google gps.conf" (without quotes). You will need
root.
Reason is that Google delivers Android with an invalid gps.conf file, for devices with pure or next to pure Android.
You also need to verify APN settings, and add agps and supl if not exists.
For best performance enter the nearest ntp servers, search Google for ntp server list.
Hi all,
Same problem here. When it was new, the GPS was really really fast and reliable. But now (since an update...? I don't know, it's the phone of my wife), the GPS don't run : it's see sat, but the SNR stay on 0 for all. Sometimes, it's run but it's really slow to get SNR and keep it.
So I think it's only a software issue, but I don't know how to resolve it.
The phone is not rooted, so I can't try the Simiono's method.
By advance, thank you.
Fred
I have also this.sometimes it takes 10 minutes to receive signal.what to do?I ise it without data or wifi.only gps.
Peace to all
Simioni said:
For many Motorola devices GPS doesn't work when connected to a 3g network. No problem when connected to 2g, 4g, WiFi, data disabled or no network. For this cases follow bellow steps:
You need to replace /system/etc/gps.conf by a valid configuration. Just
search in Google by "Google gps.conf" (without quotes). You will need
root.
Reason is that Google delivers Android with an invalid gps.conf file, for devices with pure or next to pure Android.
You also need to verify APN settings, and add agps and supl if not exists.
For best performance enter the nearest ntp servers, search Google for ntp server list.
Click to expand...
Click to collapse
Thank you for your suggestion, but I have been using the GPS in this MXPE for ten months without issue.
What could kill it? I haven't stopped the phone.
I tried Waze, Google maps and GPS Status & Toolbox app with same results. Sometimes I have a lock and 9 satellites for a few minutes. Other times I have no satellites for many minutes.
Sent from my XT1575 using XDA Free mobile app
Hello there! Sir do you have a Stock ROM for Xplay i6s Plus???? i've been searching the net the whole month of January until today (February) but i cannot find a working ROM. My phone is dead boot, its not charging anymore and wont boot, but my PC still detects it. Hoping for some help. Thanks a lot.. I will appreciate any help.
I had the same issues for a long time and I thought is a software problem but once when trying to fix the satelites I pressed the screen in the upper right part of the screen and started to fix them really quick. I opened up the middle part of the back and searched where is the gps antenna. There are more connectors there , some for flash in the middle, but the ones for gps antenna is located on top and and right. I pulled them a little to make a bigger pressure on the board and since then I have no problem with fixing the gps ?
I hope it is helpfull for you guys because before this I was considering buying a new phone

Wi-Fi Channels 12/13

Anyone having issues connecting to wi-fi networks on channels 12/13? On my device I'm unable to see SSIDs in these channels most of the time. Sometimes I can see networks in channel 13.
Am engaging with Google tech support, so will keep you posted.
What country are you in?
UK
I seem to be the only person on my street that knows channel 13 exists. No issues for me connecting. Although I run my phone to my 5Ghz connection normally, I can connect to my 2.4Ghz if needs be.
TheReverend210 said:
I seem to be the only person on my street that knows channel 13 exists. No issues for me connecting. Although I run my phone to my 5Ghz connection normally, I can connect to my 2.4Ghz if needs be.
Click to expand...
Click to collapse
Good good.
I'm wondering whether it's down to me not activating the SIM in the phone as yet? Like a double check that the phone should be allowed to use 12&13 (rather than just selecting English UK as the language).
TheReverend210 said:
I seem to be the only person on my street that knows channel 13 exists. No issues for me connecting. Although I run my phone to my 5Ghz connection normally, I can connect to my 2.4Ghz if needs be.
Click to expand...
Click to collapse
There's really no difference in using that over channel 11 in your case with the co-channel interference.
YES!
It's not just me then. Home router (2.4Ghz) is on ch.13 and when i return home the device will not auto-connect until i toggle wifi off and back on again. Wifi works fine until i leave again. connects fine to my wifi network at work but that is different channel and on 5Ghz too.
RMA'd my device and the new one was bad. Wouldn't see my network at all, but wouldn't register my Sim card either so I have just returned this replacement device. Replacement number 2 is on the way.
I switched to ch.12 and the same thing happens at home. Didn't try any other channels as they are too noisy. So I wonder if this is a software issue? I'm in the UK and the router is made by technicolor for Plusnet.
j3di said:
YES!
It's not just me then. Home router (2.4Ghz) is on ch.13 and when i return home the device will not auto-connect until i toggle wifi off and back on again. Wifi works fine until i leave again. connects fine to my wifi network at work but that is different channel and on 5Ghz too.
RMA'd my device and the new one was bad. Wouldn't see my network at all, but wouldn't register my Sim card either so I have just returned this replacement device. Replacement number 2 is on the way.
I switched to ch.12 and the same thing happens at home. Didn't try any other channels as they are too noisy. So I wonder if this is a software issue? I'm in the UK and the router is made by technicolor for Plusnet.
Click to expand...
Click to collapse
If channel 11 is noisy, then so is 12 and 13.
Sent from my Nexus 6P using Tapatalk
TheReverend210 said:
I seem to be the only person on my street that knows channel 13 exists. No issues for me connecting. Although I run my phone to my 5Ghz connection normally, I can connect to my 2.4Ghz if needs be.
Click to expand...
Click to collapse
You might want to change to channel 11. With the current setup you are not only killing your own data rates, but also the rates of everyone on channel 11. These channels are not supposed to overlap, because that creates interference. Switch to channel 11.
This is my WiFi situation. I'm normally on CH.13, but switched to 12 as a test.
My 2nd unit arrived last week, and unfortunately it's the same issue as before - no channels 12 or 13, not even visible. I'll be back in touch with Google today.
Hopefully this is a software issue rather than Google/Huawei spec'ing a duff wifi chipset.
Google spoken to and basically it's a case of tough-titty - some devices aren't going to work with channels 12 & 13.
For anyone else reading this, I had this problem and 'solved' it.
If you find that you can't see channels 12 and 13 then it's almost definitely caused by the Wifi country code restrictions.
I got my Nexus 6P here in Korea and initially tried it out with no sim card. Even though the location is set in settings, without a sim card it doesn't get the wifi country code set, and I couldn't see those channels. As soon as I inserted a Korean sim card, I was able to see them.
If you are in the UK or elsewhere, using a local sim card and you can't see those channels then chances are either your country doesn't allow it or the code is already set. Either way, your options are just accept it or try one of the 'not officially supported' ways to getting around it. That's likely why Google said you were out of luck. It's possible but involves rooting etc. I think. Just search for 'change wifi country code android'. Good luck.
throwawaynexus said:
For anyone else reading this, I had this problem and 'solved' it.
If you find that you can't see channels 12 and 13 then it's almost definitely caused by the Wifi country code restrictions.
I got my Nexus 6P here in Korea and initially tried it out with no sim card. Even though the location is set in settings, without a sim card it doesn't get the wifi country code set, and I couldn't see those channels. As soon as I inserted a Korean sim card, I was able to see them.
If you are in the UK or elsewhere, using a local sim card and you can't see those channels then chances are either your country doesn't allow it or the code is already set. Either way, your options are just accept it or try one of the 'not officially supported' ways to getting around it. That's likely why Google said you were out of luck. It's possible but involves rooting etc. I think. Just search for 'change wifi country code android'. Good luck.
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I am afraid that the issue is not as simple. I also have problems with channels 12 and 13, however my phone can connect to those channels, but only for a while. I quote the report I filed in the AOSP bug tracker (not yet assigned, though):
Before I continue, I am based in Switzerland, use a Swiss mobile provider (Swisscom), and I bought my phone through Google in Switzerland. This is relevant because in Europe 802.11b/g/n channels 12 & 13 are allowed, while in the North America they are allowed only under "low power conditions" with the effect that, AFAIK, many devices simply do not support them. My Nexus 6P however should (and shall) support those two channels.
Now, the problem.
I have two access points at home, both in the 2.4 GHz band: one on channels 4+6 and the other (normally) on channels 12+13. What I noticed is that my Nexus 6P would initially connect to the strongest signal independently from the channel, as expected, but then after a while (a couple of hours, maybe) would just stop seeing the signal on channels 12 & 13. Not just my own WLAN, but also neighborhood WLANs on the same channels. This means that the phone can be sitting a couple of meters from the AP in my office (channels 12+13) and be connected to the AP at the opposite corner of the building (the one on channels 4+6). I checked with "WiFi Analyzer" and the phone really does not see any signal above channel 11.
Disabling and re-enabling WiFi will make the phone see channels 12 & 13 once again. However after a while the problem appears again.
At home this is just an inconvenience: I moved the frequency of the second AP to a different channel and that "solved" the problem. On the other hand this might be a much more serious problem when I am in an environment where I can't change the WiFi settings. Maybe I want to connect to a public hotspot broadcasting on the "wrong" channels or I am at the office in an area covered by APs on channels 12 & 13. Tough luck.
Incidentally, I saw at least one report of someone who had exactly the same issue: he had to disable WiFi and enable it again to get the phone to connect to his WLAN (on channel 12 or 13, I can't remember). I also have to say that in our household we have a few other Android devices (2 x Nexus 7, 1 x Nexus 9, 2 x Nexus 4, 1 x Moto X Play) running either 6.0.1 or 5.1.1 and a few other devices (iPhone 5S, iPhone 6, laptop, 2 x Kindle) and none exhibits this behavior. It seems to be specific to the 6P.
I suspect that after a while the WiFi driver simply reverts to its default regulatory domain ("US", I assume) and stops listening to channels 12 and 13. Why it might do so is anyone's guess. Maybe doze interferes with the driver.
Same problem here. The only way to reconnect to WiFi channel 12 or 13 is to manually switch WiFi off and on again on the 6p.
I'm in Hungary.
Guys, there is a thread in the Nexus Help Forum and I reported the issue in the AOSP Bug Tracker. Add your contributions to those threads and star them. Let's try to bring this to Google's attention, otherwise we will never get any action on this topic.
Edit: For some reason I can't add links to the post. Please search issue 197106 ("WiFi 2.4 GHz channels 12 & 13 not working properly on Nexus 6P running 6.0.1") in the AOSP Bug Tracker and the post "My Nexus 6P can't connect to Channel 12 or 13 WIFI's" in the Google Product Forums.
Roberto
I have been trying for a week to extract some information from Google and Huawei, but I must say that their support just doesn't know anything about this issue. It's even difficult to get someone to understand what the problem is: one Google support guy thought I was talkng about LTE channel 12, for example. Huawei support started talking about options in the WiFi settings that are not there, then they wanted to guide me through adding a new WLAN, and finally started clutching at straws, giving more and more fantastic explanations of why it might be so.
Bottom line is: nobody I talked to ever heard about this issue.
I would really like to understand if it could be a hardware issue (which I honestly doubt) because my RMA window is closing soon and I don't honestly know what to do: apart from this WiFi issue my 6P is absolutely flawless and I do not want to risk getting a new telephone only to find out that WiFi still does not work as expected and it's also got other issues. (And, yes, something like this already happened to me.)
robertototaro said:
I have been trying for a week to extract some information from Google and Huawei, but I must say that their support just doesn't know anything about this issue. It's even difficult to get someone to understand what the problem is: one Google support guy thought I was talkng about LTE channel 12, for example. Huawei support started talking about options in the WiFi settings that are not there, then they wanted to guide me through adding a new WLAN, and finally started clutching at straws, giving more and more fantastic explanations of why it might be so.
Bottom line is: nobody I talked to ever heard about this issue.
I would really like to understand if it could be a hardware issue (which I honestly doubt) because my RMA window is closing soon and I don't honestly know what to do: apart from this WiFi issue my 6P is absolutely flawless and I do not want to risk getting a new telephone only to find out that WiFi still does not work as expected and it's also got other issues. (And, yes, something like this already happened to me.)
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Hello, I also have the same problem. As I can report it to Google? I have not found a way.
gmarti said:
Hello, I also have the same problem. As I can report it to Google? I have not found a way.
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Did you call the Google Store Support? I hope that if they hear the same reports repeatedly they will take notice.
If your telephone is unlocked (and if you are on XDA chances are it is), flash Franco's kernel. I did it today and now my problems with WiFi are gone. Plus Franco's is known to be very battery efficient. It's a win-win situation.

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