Wifi stop working in sleep and after waking up - Redmi K20 / Xiaomi Mi 9T Questions & Answers

Hi, im having this problem for a while, and some other phones are showing this problem also (here)
in summary, phone connect to WiFi, works great, turn screen off, put phone down, and after a while, phone is now unreachable. can't connect to it if i have a ftp server on it for example, can't connect on whatsapp on the PC cause it need the phone connected to work, messages won't arrive, or arrive after 15 minutes of delay.
if i pick up the phone, unlock, WiFi does not work, it keep showing only the "up" arrow and no "download" arrow. can't connect to internet, can't connect to local PC (VNC for example) nothing works. after 30 seconds or so, it comes back, and internet works. sometimes it does not. disabling WiFi and enabling again, everything works fine. if put to sleep, everything start again.
the weird thing is, usually after update to a new version of MIUI (for example, the last 12.0.5.0 a few weeks ago) the problem goes away for a few days. always works great, every time, no problems. a few days later, the problem appears again.
tried everything i could find, no option helped, tried even disabling magisk/xposed, etc, to make sure no "mod" was causing it, nothing.
my only options now are formatting and starting from 0 or try another ROM, like LineageOS, but i'm trying to avoid cause i have tons of customized apps, bunch of banking apps, and everything works fine, except for this one problem.
any help appreciated!
PS: during the whole time, the wifi do not get "disconnected", it remains connected but not working. also tried different routers, no change. using only 2.4ghz.

I installed Lineage OS, the problem didn't show up anymore.
installed all the apps previously installed, everything still working fine for over a week.
I guess was just software related...

Related

YouTube Not connecting Problems

Hey Everyone,
I currently running Artemis_v100_WWE_210_23563 on my HD2, everything is going great except the YouTube app. Every time i try to play a video it seems to state "Connection failed. Please try again." only while I'm connect to wifi. Seems to work with my EDGE though for a little while and then it keeps showing that message. I've noticed if i hard reset my phone, it works amazingly for a good hour and then, if i trigger the wifi off, and use EDGE it starts causing issues, and when i try to re-enable wifi and use YouTube, it fails and never work again. Every time i hard reset the phone it seems to solve the problem for a little while, and then it goes back to the usual message.
I did not install anything on the phone when this occurred, and also turned off my network and only had wifi and its not working. It will work for a while like i stated with no network off immediately after i hard reset my phone but after i turn off the wifi and turn it back on it doesn't seem to work.
My internet and all other things work on the phone perfectly fine. Has anyone encountered this issue?
Current YouTube Version is 2.6
Anyone got any ideas?
anyone got any ideas yet? i update and downgraded my rom and installed the new rom V11 and still occurs, works for only a little while and now it doesnt
my does the same thing i want to know why too
luckych said:
Hey Everyone,
I currently running Artemis_v100_WWE_210_23563 on my HD2, everything is going great except the YouTube app. Every time i try to play a video it seems to state "Connection failed. Please try again." only while I'm connect to wifi. Seems to work with my EDGE though for a little while and then it keeps showing that message. I've noticed if i hard reset my phone, it works amazingly for a good hour and then, if i trigger the wifi off, and use EDGE it starts causing issues, and when i try to re-enable wifi and use YouTube, it fails and never work again. Every time i hard reset the phone it seems to solve the problem for a little while, and then it goes back to the usual message.
I did not install anything on the phone when this occurred, and also turned off my network and only had wifi and its not working. It will work for a while like i stated with no network off immediately after i hard reset my phone but after i turn off the wifi and turn it back on it doesn't seem to work.
My internet and all other things work on the phone perfectly fine. Has anyone encountered this issue?
Current YouTube Version is 2.6
Anyone got any ideas?
Click to expand...
Click to collapse
I had this same problem... I had to delete a proxy registry entry for it to work correctly! I forget which one... Do a search for it and you should find it here in the forums...

[Q]Network connectivity & Dexter's mod 1.41

Hello,
I would have posted this under the development posts but the forum won't allow me to...grrrr.
Anyway, I am using Dexter's mod 1.41 with the display settings fix also installed. Everything works great.
Except...I keep getting network errors whenever I try to download an app from the official marketplace, I also get them when sync'ing my dropbox, trying to download from the appoke apps store, signing into twitter, and a number of other apps. My browser works fine. Sometimes I can reboot and it starts working fine and then a few hours later I start getting the "network connection error has occurred" message from various apps again.
I did try reinstalling 1.41 & doing a complete wipe/restore after & still had the same problem eventually. It worked fine for awhile as I was able to go to the marketplace and download all of my apps again.
Anyway any ideas?
Thanks in advance!
i might ask if your network problems occur after the tablet was recently asleep. it seems, at least latest stock, that the power profile is set to sleep wifi/network connections when the display is off.
you might want to wait 5-10 seconds after waking up, or i suggest putting the power control widget on your homescreen and tapping the wifi button twice to re establish your network connection if you're getting network errors.
worked for me when i had download/network errors.
Sent from my X10i using Tapatalk
Yeah Forgot to mention that, but no its random when it starts happening. But definitely not just when it has been just woken up.
Nevertheless I am going to try what you suggested. I couldn't at the time when I wrote the post as it wasn't working. I turned it off and removed the SD Card, mounted it over on my PC, then copied your recent ROM update as well as Elocity's most recent firmware update, put the SD card back in, tried to reboot into recovery mode but for some reason it went into a normal boot. When I unlocked it, for some reason was asking me to sign into Google just as if I has flashed it but I definitely didnt. I've done that a bunch of time, this was definitely a normal reboot with dexter's 1.41 mod still installed. I canceled out of the google login after waiting 10 min for it to connect to Google's servers. (it was connected to my wifi network or at least I had the icon with the bars indicating I was connected to wifi) When I got to the main screen it started working normally. I went onto the market and downloaded Angry Birds Rio. Plus there were a bunch of updates for my other apps. So it is almost acting like I was not previously signed in with my google account, except that I did not relogin since I canceled it before finishing. Also I dont imagine that Dropbox would have been affected as it has its own login. But that is working fine too once I re-logged in.
It does seem to be intermittent. If it were the "not connecting after coming out of sleep mode" issue wouldnt rebooting fix that when it happens? I try that everytime I get the network errors and it works maybe 25% of the time.
Thanks for the response!
Did the 1.41 install and three patches also. Display still FC all the time. other then that works OK!.

G2x Data Connection Only Works While Tethering!??

Problem:
1) Bill (TMobile) is past due. for about 3 weeks ive been using wifi only in my house to stay connected, working just fine.
2) for about 3 months, ive been USB tethering to my desktop since it doesnt have a wireless card. now it takes my home wifi signal to the phone, thru usb, to the computer. all drivers are full up-to-date.
3) two nights ago i installed the new 2.3 Gingerbread update from LG's site, went without a hitch.
4) ever since then, my data has been freezing at downloads, browser instantly jumps to page not available, "Data Error, Retry" popup, only when im NOT tethering though. normally id blame the update, but there are plentyyyy of people without this problem.
5) yes, you heard right. when my phone is plugged in usb, it wont connect, but when i enable usb tether, the data to the phone works. its almost as if its my COMPUTER giving signal to the PHONE. this is ridiculous. when i unplug, the data continues to work for about 1 minute, then nothing.
im completely stock 2.3 with not a single new app downloaded. so i factory reset and wiped everything, loaded back in as if it was out-of-the-box, same results.
ive tried switching my WiFi off policy to never go to data (shouldnt matter, i did this for weeks without changing that, so i set it back to the standard option) i also know in 2.3 if your screen goes off it switches to data, so i set my screen to stay awake while plugged in.
needless to say... HELP.

[Q] A500 has developed freezing "issue"

Hello,
ok, I gave up on moving APPs to external SD on ICS 4.0.3...
Here is my new issue in a nutshell....
I updated to ICS 4.0.3 with no problems and everything worked fine for months. Within the last month, the tablet has developed a random problem, usually 30-90 seconds after it boots, where it may or may not freeze up (i.e. the screen is unresponsive) and I have to turn it oss and reboot and hope it doesn't happen again.
Sometimes this happens one or two times in a row and then its fine, sometimes it will happen five times or more, and then the next boot it is fine, sometimes it works fine on the first boot.
I have removed all kinds of apps and media to make sure I have lots of room and curently have about 5G free. but that didn't fix the issue.
I looked into the GPS txt files being left behind and made sure they are removed regularly, but that doesn't help the issue.
I used a Device Info APP to display what is going on when this happens, and while it doesn't show any APP or process I can see as the culprit, the CPU is being maxed at 100%?
It also seems to have "something" to do with the WiFi, as when it "locks up" the WiFi icon in the tray goes away and when I go to settings it seems stuck trying to turn off the WiFi. But at other times then the WiFi is working fine?!
Also, sometimes if I let it go to sleep for too long, when I wake it up this will happen..
SO... anyone got a clue what this could be?!

4.4.2 Starting to become a bit buggy?

I've had the 4.4.2 OTA about 2-3 weeks now, and for the most part its worked fine but as things go on I am noticing it starting to go a bit buggy. I have had issues with my Wifi, like this morning turned the phone on and it would not connect to my wifi, sure it saw it and it had full strenght but it would not connect to it, I went in manually and selected it nope nothing, I forgot network and connected again, nope nothing, restarted the phone nope, after 5 restarts it connected. I've also had issues with wifi connecting when coming out of airplane mode, everything else turns on but I have to mess around with wifi to get it going again.
Also had issues with apps crashing randomly, also had periods of sluggishness for no apparent reasons.
Anyone any ideas?
About the Wifi, try the Wi-Fi fix in this forum, maybe that'll help. For me stock is going absolutely fine. I was on OmniROM, but the updates start becoming a little buggy for me, so I switched back to Stock.

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