Can't use cellular data while connect to local only WiFi (GoPro) - Samsung Galaxy S8 Questions and Answers

Hi, I would like to use my S8 to livestream my gopro (with a self made app based on FFmpeg), for that I need to be connected to the GoPro stream via WiFi and I need to use my cellular data (LTE) to send it to a streaming server.
In my test I noticed this phone is unable to keep both connection open at the same time, it was not the case on my previous LG G4, I was also able to test on a nexus 5X where it worked successfully, so I blame the samsung software (PS: I just did an update, didn't change anything).
I tried every options (and combination possible), keep cell data, agressive wifi/cell, both in dev' settings, also smart wifi (agressive or not) in regular settings... And it didn't change anything (the smart thing only either fully disable the wifi connection to local only wifi or connects fully to it and awaits internet connection).
I found this thread on samsung forum https://us.community.samsung.com/t5...internet-while-connected-to-GoPro/td-p/185875 with no answer...
Do you guys have any solution?
Quick edit: I did try to use "Download booster" thing but it doesn't help, it seems the phone is still using the wifi for DNS, I tried with and without smart switch thing... They really didn't think about people using WiFi without internet connection voluntary??
Thanks

same problem here, i don' t know how to fix it. you can share your code? with other guys we are trying to do a solution to live stream gopro on android , if you want i'll link it to you

It cannot be done as we cannot change our IP, Default Gateway, or Subnet on our WiFi.
With iOS you can, thus why iOS users can use the GoPro and LTE simultaneously.
Enjoy.

Related

Wifi sucks :(

Hi all,
I just got my device, and still thinking whether to send it back in 7 days. My main complain is the wifi. I have never seen more than 2 bars (out of 4) signal strength, even when sitting 2 meters from the router. Moreover it always drops the connection. I realized it when I tried to use IE for browsing, since that doesn't tolerate it and I keep getting the connection lost messages. Seems that Opera can live with it, but I see when the connection dropped during the page load. Youtube watcher also cannot manage to download videos when the signal is dropped.
The Tx/Rx rate also changes chaotically from 1Mb/1Mb to 54Mb/36Mb.
Before you ask: the Power Mode of wifi is set to "Best Performance", since this is the only way it is usable.
Anybody else with similar experiences?
Any solution?
I really appreciate any help, I would like to keep it!
I have no problems what-so-ever with the wifi on my D2...
It runs very well, in all applications that can use it.
- and I have full signal when I am within 5 meters of the router.
I haven't changed any settings on the device, and the router is running on WPA2-PSK at a channel not used by any of my neighbours.
Maybe you have many wireless networks in your area?
Hi,
I have more or less your problems (I opened a thead about it the day I unpacked my D2 but wasn't really condiderated). Here's my condition: I have 3 HTC devices...Artemis-->regular functioning (balanced power), TytnII-->Power Performance MUST be set to high performance, Topaz..well I could connect with balanced power but since I upgraded radio I have to keep it set to best performance, otherwise I would get "fake" connections (connection established but no data taffic). I don't really bother to have to set it like that because the connection is dam fast, which compensates the higher power consumpion.But beside this, I must say that my router is not very friendly with my D2,e.g. when I don't get a connection,I restart it and it works (this must have to do with DCHP service). I have much less trouble connecting alsewhere. So ,what to say? Try to change radio...Do you have other wireless devices working regularly in the same area?Do you have an original rom?You could also try to change wifi channel..would be happy to help
Hi,
Thank you for the answer. I have original ROM, just checked the radio, it is: 3.43.25.19. I didn't experience "fake connections" when it is connected, it is so .
I cannot change the wifi channel, the same router is used by others. However it cannot be the cause of my issues since my notebook's network works fine on the same router.
Changing the radio... seems a good idea. It is my very first smart device, I even thought that this version number was for the hardware, not the software . I will find out how to do it, maybe give it a try. Hope it is an officially supported action .
Hi Lamsebamsen,
The TD2 sees 4 wifi networks, my notebook sees 8. Is it many or not? I think the 4 which the TD doesn't see is many .
foldip said:
Hope it is an officially supported action .
Click to expand...
Click to collapse
I'm afraid not, as you would have to HardSPL your device first. There would still a way to get back to your original configuration but I don't know if you are prone to do so, that depends on how much responsability you can take on your device (is it from work or..). Another thing to try is to manually configurate your connection (e.g. assign D2 always the same IP, but watchout for network collisions!router should be set aswell)

[Q] Any solution to keep IP from changing?

I know that this thread will probably be over in approximately 3 posts, but I figured this was the place to ask to get a good answer.
I am part of staff for a site that uses my IP to enable staff functions. These functions are set to the IP I'm on. However, it never works considering my IP constantly changes when I'm on the T-Mobile network, and I do not have access to wifi. Is there any possible way at all, to be able to make this work, either from my N1, or on my PC using my N1 as a 3G hotspot? I'm not all that knowledgeable about networking, but I'm thinking there has to be some possible way to make this work somehow. Maybe I'm wrong and it is one of the impossible things to do on a cell network.
Thanks for any help.
how often does it change ? is the running at home or the pc u are tethering with it ? are you using a 3g network service for a server
Every couple minutes at least. One minute it's for example, something like 208.54.27.50 and in a matter of 5 minutes the last two digits could be changed. I use the 3G hotspot at home and there's no difference from that and using the phone's browser itself. I do not use T-Mobile 3G to operate any servers.
If it is via your provider you have no control over it changing as they assign you a dynamic IP. If you were at home you could set it to a static local IP (Over WiFi) but outside your LAN on T-Mobile's WAN you have no control over DHCP
All I use for internet access on the go and at home is the 3G hotspot that I get from my phone. Would I need an actual Wifi connection from an ISP other than T-Mobile to set it to a static local IP?
looks like that just cant be done.. either ur site changes ur auth to id pw based one(atleast in ur case)
or ..
if its a job of just checking somthing, u can find a friend or family member with a 24/7 online pc(with a a static ip) and just do the job thru a remote desktop connection
All right guys. Thanks. Very much appreciate your thoughts and for not flaming me due to an obvious answer. Thank you again.

[Q] WiFi Problems AFTER Internet Sharing

This is an embarrassing question for two reasons. First, I’m sure it’s a simple answer that is just getting past me. Second, every search string I try comes up with dozens of pages talking about setting up Internet Sharing, none that I could find addressing my problem. After reading through numerous pages and double checking the terrific collection of FAQs that mmalka put together for the Rhodium Energy ROM, I decided to ask here.
My problem is with connecting to the Internet through a WiFi connection on my TP2 AFTER having used the Internet Sharing app.
I use WiFi at home all the time and I never have any issues setting it up after flashing – this time was no exception. It’s been working flawlessly since flashing the ROM in my signature several days ago. But I needed independent Internet access at work yesterday to test out a VPN/remote desktop connection on a laptop and decided to try the Internet Sharing app on our phones. VERY impressive! A couple of quick buttons pushed and viola’! Worked like a champ!
However, back at home I had trouble getting my phone to connect to my home WiFi router again. I discovered that when I tried turning on the WiFi, it was looking to be used as an Internet Sharing point again. So I deleted that connection (“forgot” it) and it successfully connected to my home WiFi router. However, it will not actually go to the Internet – everything faults out with “Connection is currently unavailable”. Switching to the T-Mo 3G connection, everything works great.
Has anyone else had this issue? Any suggestions short of a hard-reset?
Many thanks in advance.
Solved!
Well, judging by the number of looks with no reply, either this was a simple solution that I should have been able to easily figure out or no one else is having the issue to know what to do. But I finally figured it out and just in case anyone else eventually comes across the same issue, I thought I tell you what I found.
After digging around, I found that the Internet Sharing application changes the Broadcom 802.11 DHD Network Adapter to a local IP address. So all I had to do was change it to “Use server-assigned IP address” and everything worked. (Settings tab, Wireless Controls, WiFi - Connect to WiFi Network, Advanced, Adapters and Networks, Network Adapters, edit Broadcom 802.11 DHD Network Adapter, Use server-assigned IP address.)
I have no idea whether going back to a standard wireless connection should automatically switch it back, but it doesn’t in my case. If anyone has a simpler way of address this, I’d love to hear about it.
Regardless, I hope this help someone.
Thanks
gregb882 said:
I have no idea whether going back to a standard wireless connection should automatically switch it back, but it doesn’t in my case.
Click to expand...
Click to collapse
OK, so I stumbled into another revelation. It seems that if you remain in the WiFi Router application (or simply go back to it) and use the "Stop" command to discontinue the service, the Broadcomm Network Adapter does get reset to "Use server assigned IP address". The few times I used Internet Sharing, I was in other apps when I finished and simply turned off WiFi.
Oh well, live and learn.
I had a similar issue recently.
my new router was connecting fine to another mobile, but not my EnergyRom mobile.Thought it was my new routers band G/N compatibilty issue. however your post help remind me that i had used internet sharing on my HD2 for my laptop a few days earlier..Checked out my settings and well broadcom adapter was set to static at 192.168.1.1...switched it back to server assigned Ip and voila wireless is connected now
Really appreciate your post..Thanks so much for posting the solution, Gregb882

Switch back to cellular when wifi has no internet, but keep wifi connected

tl;dr: When my phone (Sony Xperia Z5 compact, Android 6) connects to a wifi with no internet, I want to use the local network on the wifi but use the internet from my mobile data. Instead what happens mobile data doesn't switch back on while connected to wifi with no internet.
I have been trying to find a solution for this since forever. My camera creates a local wifi connection which I can connect to to view the camera as well as controlling it. The downside is that while connected to this network my cellular data gets switched off, despite this wifi network not having any internet. So while using my camera I have no way to access the internet. It wasn't a huge problem up until recently when the app I use is introducing livestreaming. I really want to use it but I am unable to find any way how to keep my phone connected to this wifi network (and being able to use it), while any internet data goes over 4G. I am using android 6.0.1. I am quite sure I was able to do this on my previous phone with an older Android version but I cannot find said option (smart network switch or something?) anymore in the wifi settings. Nor any recent similar topics with people with the same question? Anyone that knows more about this?
My phone is rooted. If I need to do any system changes I can do that.
I didnt get what you were trying saying.Do you know that you cant use mobile data and wifi simultaneously unless your device is rooted.If your phone is rooted then try using "download booster"
hh950430 said:
I didnt get what you were trying saying.Do you know that you cant use mobile data and wifi simultaneously unless your device is rooted.
Click to expand...
Click to collapse
Err, sorry, lol. I have wifi network that has no internet, just a local network. I'd like to be connected to that wifi network AND be able to use internet over my mobile data both at the same time. As it is right now, my mobile data gets disabled even when the wifi network has no internet access.
I have talked to two friends of mine about it and both say this is already possible in Android. One friend sent me a screenshot of an option he has in his wifi settings called 'Switch to mobile data' which gets enabled when the wifi network has no internet. My other friend said he doesn't have this option but claims it has been a default feature of Android since lollipop. He tested it on his phone and indeed it works as expected. Both have an unrooted phone with stock Android. So now there is me with my brand new phone and Android 6 and I can't find this option nor does it seem to do what I want by default. I'm confused.
As I mentioned, my phone is rooted so if there is a way to turn this feature on using root, I can totally do that if someone knows how.
As i said try using "Download Booster" It allows you to use wifi and mobile data at the same time just google it.
hh950430 said:
As i said try using "Download Booster" It allows you to use wifi and mobile data at the same time just google it.
Click to expand...
Click to collapse
That appears to be just a download manager if I am correct? I don't need to download anything. I just want to be able to use my existing apps to use my mobile internet when I am connected to wifi (that has no internet).
This is the exactly the thing I'm after. Screenshot from my friend's phone (LG G4 with Android 6.0): (*link removed). My other friend who also has this functionality working has a Nexus 5 with Android 6.0.1.
* Forum doesn't let me post screenshots.. But basically in his wifi settings he has an option called "Switch to mobile data". The box says "Internet unavailable via connected Wi-Fi. Stay connected to Wi-Fi, but use mobile data. Data charges may apply."
Again, I have Sony Xperia Z5 compact with Android 6.0.1 and I can't find this. Have I bought the wrong phone or is it fixable? At this point I am more than happy to even take a custom rom route.
You cannot use wifi and internet at the same time as they are completely different hardware components, using different air waves, so there's no conflicts between them. Better use internet through your wifi or use bluetooth tethering.As for the "switch to mobile data option" it disconnectes you from your wifi if it has no internet and connects you to your mobile data so it doesnt lets you use your wifi and mobile data at the same time
hh950430 said:
You cannot use wifi and internet at the same time as they are completely different hardware components, using different air waves, so there's no conflicts between them. Better use internet through your wifi or use bluetooth tethering.As for the "switch to mobile data option" it disconnectes you from your wifi if it has no internet and connects you to your mobile data so it doesnt lets you use your wifi and mobile data at the same time
Click to expand...
Click to collapse
It actually clearly mentions that it keeps connected to the wifi. He tested it and indeed he could use the local network on the wifi side and use the internet through his mobile data simultaneously. Both friends haven't rooted their phones or anything. This is just a default functionality for them. I have now tested it also on my older phones (Oneplus One and HTC One M8) and all phones can't have both connections open at the same time.
This wifi network is created by my camera by the way and I can't change much about it. The DJI drone I control does the same thing. When I am connected to the camera or drone I lose my mobile internet connection.
I don't have any other device that has access to internet here. We don't have cabled internet, only mobile internet.
Interestingly, in the developers options there is an option called "Mobile data always active" ("Always keep mobile data active, even when Wi-Fi is active"). I've tried it many times, rebooted my phone but this doesn't actually do anything. Even with this option on when wifi is connected the mobile data gets turned off.
This is beyond annoying!
I too have struggled to find a solution to this problem. I do not have a WAN connection to my home network. It is LAN only. I have four PC's, three Sonos speakers, two hdhomerun TV tuners, and various hand held devices that all use the LAN. All I want to do is be able to use my Moto X Pure to control Sonos and file sync to my LAN via wifi and simultaneously use mobile data for WAN stuff. I know the mobile connection is active with wifi enabled because I can see it when running if config, up route show etc... I am trying to learn about the routing tables to see if I can fix this myself. I love my android devices and am loyal, but this is beyond dumb! Any suggestions????
How to fix for android
okay so for anyone who doesnt know still go into the about phone option in your phone settings, then click on kernel version, build model, etc til one pops up with a flash notification saying click so many more times and youll become a dev. once you done that go into the developer menu and scroll too wifi assist or force mobile data upon wifi connection. exit out , open your app , bobs your uncle
Thank you for the answer.
I tried with my Huawei but it doesn't work. Could you tell with which phone you made it work ? Thank you !!
Ok here we go, after 12 years this my first post.
Above suggestions related with developer options nothing to do with OPs requirement. Those option only allows the device rapidly switch to mobile data when the WiFi signal gets weak. Since you always close to your DSLR camera it solves nothing because WiFi signal is always strong.
Root cause of the problem is you can not have 2 default gateways (i.e. router address) for your networks in any operating system (Actually you can but you have to set static routes, which is a pain in the ass for regular users)
iOS handles this in a very simple way. Set your wifi connection to static IP address instead of DHCP and leave your default gateway or router address blank. Viola you can have 3G/LTE data while you connected your camera and now you can sent your downloaded pictures via Whatapp while you still connected to your camera via WiFi. (In my case Panasonic Lumix)
I stumbled upon this thread via Google since I needed the same thing now with Android. But iOS way failed. Actually I am shocked that you cannot leave WiFi Gateway address blank in Androdid 8.0! Save button grays out if you leave it blank. This is really weird. At least with Galaxy S8 Duos with Android 8.0
So anybody know how to setup a WiFi network without a default gateway, please share.
Is this phone specific or something? Never had that happen, I have no problem with wifi being on without internet and using cell data.
I don't think the UI really exposes anything like it directly but you can technically have multiple gateways; it's not something your average user will understand (policy routing)..
Having said that, if you're attached to an AP you should at least see a /24 route out your wireless interface (standard dhcp lease). It's quite common for the AP to have client isolation but are you sure you're not using something like Wifi Direct or even adhoc?
Similar Experience
I have been through this experience long ago. All I did was to sell the phone and bought a new one.

Xfinity hotspots are now all 5ghz.. connect with a 2.4ghz phone?

So Xfinity is transitioning all of their public hotspots to 5ghz frequency wifi.. the motive behind this is pretty obvious (they want to keep low end and older model phones off their public network..with them now functioning as a wireless provider, people using out of service and/or low end phones as "wifi phones" cuts into their business.)
Obviously this doesn't really effect users that have active data plans or users that have a relatively new and/or high end phone, but for the other 80% of us this essentially makes a great deal of our "technological arsenal", which could be used as wifi repeaters, music players, security cameras, and so much more, essentially obsolete.
So to circumvent this all you really need is one phone that is 5ghz frequency capable (most newer phones, most Motorolas and Samsungs and pretty much every not super crappy LG phone can do so.) You also need an app called "netshare" (if your 5ghz compatible phone is rooted then I'd recommend "netshare+" as it allows one to reshare the wifi without any proxy forwarding assuming you have active Xfinity credentials), and your also need psiphon pro on all the phones receiving the wifi signal (unless your 5ghz phone is rooted, using netshare+, and is signed into Xfinity hotspots with a valid Xfinity account.). If you won't be using anything but chrome itself then you can get by without psiphon.. but generally speaking most people will use messenger and YouTube and whatever else so, if/when you establish a connection on your receiving devices go ahead and download psiphon.
Once you're connected with an LG or Samsung sometimes depending on model you can simply set your hotspot to reshare the wifi connection (and of course set the band to 2.4ghz), but not every model supports this. (If yours does, congratulations. You're finished), however if it won't allow you to use your hotspot without a sim card or whatever, simply open netshare. Go-to configure name/password or something of the sort. Some models will allow you to change the frequency to 2.4ghz here. If it doesn't (Motorola devices generally don't) simply open wifi direct in advanced options in wifi and connect your 5ghz phone to a receiving 2.4ghz.. just long enough to open netshare and share your wifi signal(this will force it to 2.4ghz, rather than the 5ghz default it would be if not already connected with a 2.4ghz). Once netshare is on and sharing your wifi connection go back to wifi direct settings and end the connection with the 2.4ghz device.. then reconnect as you would any other wifi network
DIRECT-WHATEVER-THE-NETWORK
RanDOM8S
etc..
But be sure to go-to advanced options, proxy settings, change to Manuel.
Proxy hostname "192.168.49.1"
Proxy port "8282"
All without the quotes obviously.
Now you should be able to browse on chrome. If you haven't already, download psiphon pro, and go-to options Proxy settings. Connect through http proxy. Host address "192.168.49.1"
Port "8282".
Then connect. Your receiving devices should now be connected (through your 5ghz phone of course, using it as a hub), and most of your apps working as long as psiphon is on and connected properly.
(This is my first tutorial so please go easy on me. Obviously constructive critique bus appreciated, but please go easy on me fellows.. I'm a bit of a newbie..lol)
And I plan on adding pictures and revising later on depending on wording and whatnot.. but I wanted to at least release a preliminary method of connecting to the newer 5ghz hotspots.. because about a month ago I know I could've used it.. even if it wasn't refined.. anyways thanks for reading, and good luck compadres!!
A very useful and understandable tutorial, this is exactly what I was looking for, because I have a rather old phone model.
Thanks for the useful tutorial! The fastest speeds from Xfinity are available to almost all customers, as opposed to just customers within reach of a 5G tower.

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