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[Q] CM12: How to disable wifi/3G usage at same time

Hello,
I have a "problem" with wifi/3G usage at same time:
Generally Android uses wifi OR 3G, at least as I know and as it worked on ROMs <CM12. When I come home and login to my wifi, I see that some apps are using 3G while wifi is connected. If I then disable 3G and reactivate it, my phone stops using 3G. This happens only in my home wifi. I assume that there's a "problem" with my network config. I'm using a firewall with web proxy, everything is blocked so all devices are forced to connect to web via 8080. Proxy ist configured in the wifi settings. However there are plenty of apps that are not interested in using this proxy - it seems Android decides then to use 3G.
Could it be like that: CM12 connects to my wifi and discovers that all ports are blocked except 8080. All Apps trying to connect directly to the internet can't do that and CM12 directs them to 3G?
In Samsung Settings you are able to set an option to allow the usage of both networks, if wifi is poor. But in CM 12 I can't find such option. How can I disable that?
---
One more thing: I use very often system profiles but always have to go to settings to change the profile. Is there a way to configure the action bar buttons like in CM11?
TIA

Hello again, I'll give it another try. No one noticed that with CM12?

dbsoundz said:
Hello again, I'll give it another try. No one noticed that with CM12?
Click to expand...
Click to collapse
I can't answer your specific question, but as a short term workaround, maybe try installing SmartWiFi Toggler, it has an option to force a disconnect mobile data when you're connected to Wifi.

Disable New WiFi Feature in Android 5.1.1

Hello Everyone,
I recently upgraded to CM 12.1 and discovered that my WiFi won't automatically connect to my router anymore if it doesn't detect access to the internet (I'm in China and Google is Blocked). I believe this explains why this is happening as there is internet and having to manually connect each time is annoying at least Is there a way to disable this "new feature" ?
Regards,
Bob

In Settings, got to WiFi, press the menu button in the top right and there should be an Advanced settings section or something similar (sometimes varies based on ROM/Language). Then untick the Avoid poor connection option. This should resolve your problem. If not, you may not have the correct firmware for 5.1.1

I already have Avoid poor connections unchecked. Any other way to fix this?

Does anyone have any ideas? Any help would be appreciated. Thanks

Try disable mobile data before connect to wifi, maybe this way should help
Sent from my A0001 using Tapatalk

viper134 said:
Hello Everyone,
I recently upgraded to CM 12.1 and discovered that my WiFi won't automatically connect to my router anymore if it doesn't detect access to the internet (I'm in China and Google is Blocked). I believe this explains why this is happening as there is internet and having to manually connect each time is annoying at least Is there a way to disable this "new feature" ?
Regards,
Bob
Click to expand...
Click to collapse
I have the EXACT same problem - it really does happen because you're in China and the method of internet access testing is through Google servers blocked in here.
I'm still trying to figure out how to disable the test or maybe reroute the destination.
It would definitely be a temporary solution to make the VPN active 24/7 if you put it on the router instead of on the phone / computer etc.
Let us know if you find a solution!
Itai

this was a very popular and general problem for every Chinese user with google service device.
you have to root your phone and manually change the google server address to a local substitute site, or just turn off the google server detect.
the easiest way is to use an APK developed by Chinese to have all these things done in a click.
search NoExclamation Portal Server 1.5

+1
syzkk said:
this was a very popular and general problem for every Chinese user with google service device. you have to root your phone and manually change the google server address to a local substitute site, or just turn off the google server detect. the easiest way is to use an APK developed by Chinese to have all these things done in a click. search NoExclamation Portal Server 1.5
Click to expand...
Click to collapse
came here with a google search. this problem is generic to later android versions. i'm on cyanogenmod 12.1 which is i gather is android 5.1.
looking at DNS logs, it tries to access: http://connectivitycheck.android.com - which redirects to google and fails as it's blocked by the GFW.
just downloading the chinese apk to fix it... the link to it i found is: http://m.hiapphere.com/apk-org.foxteam.noisyfox.noexclamation
EDIT: so now got noexclamation the app running, but not sure it's doing anything. UI is in chinese, not sure what options to deal with and how. anyone have success with it?
EDIT2: it's like this: install the app. leave it at defaults where it's using the developers website for connectivity check. toggle it ON if it's not already (i believe needs root). reset network settings by toggling airline mode ON/OFFl. you're good.
however - conceptually better fix would is to take the "feature" OUT, not alter the server that it's checking the accessibility of. from the chinese thread, i gather this will get done by:
su
settings put global captive_portal_detection_enabled 0
this seems to survive reboot as well. problem solved, end of monologue!

Unable to access the internet via WiFi connection

Please help! My R7 plus F cannot access the internet again thru WiFi connection. This is not the first time ( I guess 3rd or 4th), but it now lasted for 4 straight days (and counting). I am very sure that our connection has no problem because I'm using it in my laptop, and I also already refreshed my router, my Oppo unit and even made a factory reset (which was advised by their customer service agent) but nothing worked. :crying::crying::crying:
I have not installed apps that would control my internet like HotSpot Shield or Antivirus. Hope someone could figure this out.
I don't want to bring it to the Service Center (it would take about a minimum of two weeks) aside from I don't have an extra phone. Thank you so much to all who would take time to help. God bless!:angel:

aissa27 said:
Please help! My R7 plus F cannot access the internet again thru WiFi connection. This is not the first time ( I guess 3rd or 4th), but it now lasted for 4 straight days (and counting). I am very sure that our connection has no problem because I'm using it in my laptop, and I also already refreshed my router, my Oppo unit and even made a factory reset (which was advised by their customer service agent) but nothing worked. :crying::crying::crying:
I have not installed apps that would control my internet like HotSpot Shield or Antivirus. Hope someone could figure this out.
I don't want to bring it to the Service Center (it would take about a minimum of two weeks) aside from I don't have an extra phone. Thank you so much to all who would take time to help. God bless!:angel:
Click to expand...
Click to collapse
What exactly do you mean it cannot access Internet, are you saying that it cannot locate/scan WiFi connections or are you saying that you are unable to connect to available WiFi networks.
If it is the former, I was able to fix my problem by installing the latest OTA update/Color OS ROM. The latter I have yet to encounted

Oh..sorry for not giving clear details. My unit can do both, scan and connect to WiFi. But once it is connected to our network at home, the apps and browsers cannot access/use that connection. The browsers and playstore shows error, the Facebook app says "cannot connect right now" and the rest of the apps do tge same.
Though I haven't tried it again with other networks this time.

aissa27 said:
Oh..sorry for not giving clear details. My unit can do both, scan and connect to WiFi. But once it is connected to our network at home, the apps and browsers cannot access/use that connection. The browsers and playstore shows error, the Facebook app says "cannot connect right now" and the rest of the apps do tge same.
Though I haven't tried it again with other networks this time.
Click to expand...
Click to collapse
when you turn wifi off in your phone, does your mobile data work and can all your apps get internet this way?

Yes.. I have no problem with mobile data connection.

I have exactly the same problem as yours! Please help. Thank you

Connected to WiFi but NO internet access RESOLVED!
:victory::victory::victory: CREDITS to Source >> techsiddhi.com ( I ONLY USED METHOD 1, AND IT WORKED IMMEDIATELY! )
How to resolve Connected to WiFi but no internet access for Android
Its true that smartphones are not smart without internet access. Most of the Smartphone users are on Android platform and are increasing day by day. There are numerous Android phones in market from various manufacturers. One issue is common in these droid devices be it from Samsung, Sony , HTC , Motorola , Micromax or any other brand and that is at some point we see these devices connected to wifi but could not connect to internet. Below are simple tricks to try out when you face this issue on your Android device next time.
Method 1 - Change WiFi Setting
Step1: Navigate to Settings > Wifi > Long select on your Wifi Network to see Modify Network Option
Step2: Select Modify Network option
Step3: Enter password
Step4: Check Show Advance option
Step5: Scroll down to view advance options which must be available by now.
Step6: Change IP Settings from DHCP to Static
IP Address : Most probably your Gateway address will be 192.168.1.1 change your IP Address my changing last digit in this address use any value preferably between 2 to 20.
Change DNS1 to 8.8.8.8
Change DNS2 to 8.8.4.4
Step7: Save these settings.
Step8: Login into your wifi network if required, you device should be able to connect to internet by now.
Method 2: Reset Router and Wifi Network
Step1: Navigate to Settings > Wifi > Long select on your Wifi Network to see Forget Network Option
Step2: Select Forget Network
Step3: Switch off your router and wait for 10-15 seconds before restarting it.
Step4: Restart your Wifi router
Step5: Reboot your phone
Step6: Search for your Wifi Network in available Network lists.
Step7: Connect to your network and check if device is connected to internet or not.
Step8: If you are connected to internet by now then you are done else perform Step 2 to Step 8 from Method 1.
Method 3
Update your phone and Router date and time to match internet provider date and time to check if all three are in Sync.
Method 4
If none of above method works than download any Wifi issue Fixing application such as WiFi Fixer. This application will analyze and resolve issues if your device is connected to wifi but not able to connect to internet.

[solved] Since android 9: phone uses mobile data though wifi available

Update: Solved! It was a problem with AFwall+ and Android 9, not with android itself.
I used this as a workaround: https://forum.xda-developers.com/showpost.php?p=77302832&postcount=4612
-------------------
Hello all,
I recently updated my Pixel 2 to Android 9. Now, when I am connected to my wifi, it isn't used. Instead mobile data is used ):
What can I do about this? Is this a known issue?
Hint:
- There's an exclamation mark on my wifi symbol, but I also had this in previous versions, yet wifi was always used instead of mobile data!
- when I turn off mobile data, then wifi is used, so I can confirm that wifi connectivity is given - it's just not used when also mobile data is available.
Thanks for any hint on this!

You probably have a low quality connection with the router. Happens often in busy public wifi networks. Open the wi-fi settings, it usually tells a reason for the exclamation mark there.

srynoname said:
Hello all,
I recently updated my Pixel 2 to Android 9. Now, when I am connected to my wifi, it isn't used. Instead mobile data is used ):
What can I do about this? Is this a known issue?
Hint:
- There's an exclamation mark on my wifi symbol, but I also had this in previous versions, yet wifi was always used instead of mobile data!
- when I turn off mobile data, then wifi is used, so I can confirm that wifi connectivity is given - it's just not used when also mobile data is available.
Thanks for any hint on this!
Click to expand...
Click to collapse
Do you live in a country that has limited or restricted access to google services?

Thanks for your replies!
Olympus593 said:
You probably have a low quality connection with the router. Happens often in busy public wifi networks. Open the wi-fi settings, it usually tells a reason for the exclamation mark there.
Click to expand...
Click to collapse
It is my private wifi, connectivity is fine, same as before. In the wfii settings it says no internet connection, but that's not true. At least not for chrome. Play store refuses to work on wifi, guess it uses a different way to check connectivity.
jallenhayslett said:
Do you live in a country that has limited or restricted access to google services?
Click to expand...
Click to collapse
no. nothing is filtered in my country.
Any ideas what I could check/do?

srynoname said:
Thanks for your replies!
It is my private wifi, connectivity is fine, same as before. In the wfii settings it says no internet connection, but that's not true. At least not for chrome. Play store refuses to work on wifi, guess it uses a different way to check connectivity.
no. nothing is filtered in my country.
Any ideas what I could check/do?
Click to expand...
Click to collapse
Change the setting shown in my picture "always keep mobile network active" (make sure it's set to off)

crixley said:
Change the setting shown in my picture "always keep mobile network active" (make sure it's set to off)
Click to expand...
Click to collapse
it fails to load the image, but I meanwhile found the issue. see my initial post for an update. thanks for your support though!

Hotspot issues with Android Pie

I am having issues regarding Wifi hotspot on Pie.
1. My laptop find it very difficult to find the hotspot. Sometimes I have to restart the hotspot 2-3 times before the network shows up on my laptop. On Oreo, this was always instant and worked immediatly.
2. In the last few days using a hotspot from the phone and my laptop I have had issues regarding DNS/internet. Even though my laptop is connected to the hotspot network, it doesn't have any internet access. When browsing the web on my laptop, all DNS requests always fails. It happens whenever I try to navigate to a site and tries to ping a url from CMD. But if I try to ping a ip address, let say 1.1.1.1, that works fine! I can also use my browser on my phone without any issues at all. The laptop works fine on any other network and the phone works well on its own but the hotspot causes great problems. It sounds to me that for some reason when using a hotspot, DNS requests doesn't come through properly. Also, if I connect to a VPN on my laptop, eveything works, even DNS requests but my VPN is somewhat unreliable so it constantly disconnects so that is not a viable solution for me.
Anyone experiencing similar problems? It's really annoying because now I can't get any work done on my daily commute.
Edit: It sounds similar to these problems: http://piunikaweb.com/2018/08/22/go...hotspot-tethering-issues-after-android-9-pie/

baxtex said:
I am having issues regarding Wifi hotspot on Pie.
1. My laptop find it very difficult to find the hotspot. Sometimes I have to restart the hotspot 2-3 times before the network shows up on my laptop. On Oreo, this was always instant and worked immediatly.
2. In the last few days using a hotspot from the phone and my laptop I have had issues regarding DNS/internet. Even though my laptop is connected to the hotspot network, it doesn't have any internet access. When browsing the web on my laptop, all DNS requests always fails. It happens whenever I try to navigate to a site and tries to ping a url from CMD. But if I try to ping a ip address, let say 1.1.1.1, that works fine! I can also use my browser on my phone without any issues at all. The laptop works fine on any other network and the phone works well on its own but the hotspot causes great problems. It sounds to me that for some reason when using a hotspot, DNS requests doesn't come through properly. Also, if I connect to a VPN on my laptop, eveything works, even DNS requests but my VPN is somewhat unreliable so it constantly disconnects so that is not a viable solution for me.
Anyone experiencing similar problems? It's really annoying because now I can't get any work done on my daily commute.
Edit: It sounds similar to these problems: http://piunikaweb.com/2018/08/22/go...hotspot-tethering-issues-after-android-9-pie/
Click to expand...
Click to collapse
@thugslug @jbm76 I know you guys had an issue with hotspot. Is this the same problem?

yldlj said:
@[email protected] I know you guys had an issue with hotspot. Is this the same problem?
Click to expand...
Click to collapse
Point 2 sounds like it..

jbm76 said:
Point 2 sounds like it..
Click to expand...
Click to collapse
I can't remember what thread you wrote the adb commands that might fix it? Was going to direct him to that post.

yldlj said:
I can't remember what thread you wrote the adb commands that might fix it? Was going to direct him to that post.
Click to expand...
Click to collapse
Yep that fixed for me ??
adb shell settings get global tether_dun_required
If the result is "null" or "1"
adb shell settings put global tether_dun_required 0
Reboot phone

yldlj said:
@[email protected] I know you guys had an issue with hotspot. Is this the same problem?
Click to expand...
Click to collapse
His first problem I don't have, but it's the second that's the same issue as mine.
Obviously he's never searched or he'd have found my lengthy post not very far back.
The solution is there too.
I've never tried turning the VPN on to see if I get through access to the internet that way. I can't now as I've applied the fix @jbm76 found, and I don't really want to back out the fix to try it.
Definitely an area where pie has gone backwards. For those of us affected anyway.
Edit.... Sorry, I didn't note that this was a new thread.
My post is in the OB4 thread (which I at first thought this was). I'm tired and didn't look well enough.

jbm76 said:
Yep that fixed for me ?
adb shell settings get global tether_dun_required
If the result is "null" or "1"
adb shell settings put global tether_dun_required 0
Reboot phone
Click to expand...
Click to collapse
I will try these and report back.

baxtex said:
I will try these and report back.
Click to expand...
Click to collapse
If you get errors at the cmd prompt make sure usb debugging is set 'on' on the phone.

Followed the commands and it seemed to do the trick! Many many thanks!

baxtex said:
Followed the commands and it seemed to do the trick! Many many thanks!
Click to expand...
Click to collapse
[emoji3][emoji3]
Most people it works straight away. What region are you in?
Sent from my SM-P605 using Tapatalk

jbm76 said:
[emoji3][emoji3]
Most people it works straight away. What region are you in?
Sent from my SM-P605 using Tapatalk
Click to expand...
Click to collapse
Sweden.
I want to remember that it did work before, then I have to reflash Pie again and that's when the issues started.

I still wanted to say that I still suffering from the first problem, having difficulties actually finding the hotspot at all.

Its very odd. This problem has started to arise again. I tried running adb shell settings get global tether_dun_required again but I get the answer that it is 0 so that looks fine. I haven't updated anything since I had this problem the last time.

Folks,
To provide some more info and more things to try if you are rooted (I am in the US on T-Mobile). These instructions should also help you avoid tethering detection using the standard Android tethering options if you wish to.
1) Go into settings --> system --> developer options and turn off Tethering hardware acceleration. This will make sure all tethering routing is done by Android at the software level and not by Qualcomm's chipsets (so following steps will apply).
2) As suggested, put global tether_dun_required 0. Note you can also do this from a command prompt by typing su (get root access) and typing setting put global tether_dun_required 0. What this does is route tething traffic over the same APN as phone traffic, and not the hidden tethering APN that some carriers put on the sim cards.
3) Install Change TTL and in settings set it to run a boot and set TTL to 64. This ensures that all traffic leaving your phone will have a TTL of 64 and look like it is coming from the phone. (I am pretty sure this also set's ipv6 hop limit, as TMobile in the US is all IPv6 and this hides traffic.)
Reboot. If you still have trouble -- try Android's USB option to see if it is WiFi related vs Tethering system related.
- Verify that global tether_dun_required is still 0 after reboot (it should be if you are rooted).
- Delete the WiFi entry on your computer and re-join the phone's network -- sometimes it is on your computer's side.
Another thing to try is Easy Tether -- this is a good USB tethering option that won't use Android tethering system and it is guaranteed to route traffic over the phone's network APN.
If the issue is DNS, you can isolate that by manually putting a DNS (8.8.8.8) into the tethered computer to see if that is the issue.
Also, google search xda VPN Hotspot. This app has a ton of options to change Android's tethering routing even if you are not using a VPN. This may also help you figure something out. You can activate tethering, then go in here and turn on the wlan interface and it should route traffic directly to that (which should be happening anyways because of tether_dun_required = 0).
Good luck!
MW

MetroWestMA said:
Folks,
To provide some more info and more things to try if you are rooted (I am in the US on T-Mobile). These instructions should also help you avoid tethering detection using the standard Android tethering options if you wish to.
1) Go into settings --> system --> developer options and turn off Tethering hardware acceleration. This will make sure all tethering routing is done by Android at the software level and not by Qualcomm's chipsets (so following steps will apply).
2) As suggested, put global tether_dun_required 0. Note you can also do this from a command prompt by typing su (get root access) and typing setting put global tether_dun_required 0. What this does is route tething traffic over the same APN as phone traffic, and not the hidden tethering APN that some carriers put on the sim cards.
3) Install Change TTL and in settings set it to run a boot and set TTL to 64. This ensures that all traffic leaving your phone will have a TTL of 64 and look like it is coming from the phone. (I am pretty sure this also set's ipv6 hop limit, as TMobile in the US is all IPv6 and this hides traffic.)
Reboot. If you still have trouble -- try Android's USB option to see if it is WiFi related vs Tethering system related.
- Verify that global tether_dun_required is still 0 after reboot (it should be if you are rooted).
- Delete the WiFi entry on your computer and re-join the phone's network -- sometimes it is on your computer's side.
Another thing to try is Easy Tether -- this is a good USB tethering option that won't use Android tethering system and it is guaranteed to route traffic over the phone's network APN.
If the issue is DNS, you can isolate that by manually putting a DNS (8.8.8.8) into the tethered computer to see if that is the issue.
Also, google search xda VPN Hotspot. This app has a ton of options to change Android's tethering routing even if you are not using a VPN. This may also help you figure something out. You can activate tethering, then go in here and turn on the wlan interface and it should route traffic directly to that (which should be happening anyways because of tether_dun_required = 0).
Good luck!
MW
Click to expand...
Click to collapse
Hi and thank you for your post. It seems that windows had changed dns settings by its own to something invalid, so that is why it didn't work. However I am still having connection issues. Mainly I find it very difficult to connect my laptop (and other devices) to the hotspot of the Oneplus 6.
1) Done.
2) Done.
3) It was already set at 64 but I tried setting in to 64 again.
DUN is still 0 after reboot. I have also removed the wifi from my PC and changed name on the hotspot. Also tried both 2.4 and 5 Ghz. When the pc is connected the hotspot, I can ping google succesfully, so internet works but not DNS, all requests in my browser times out. I have also tried setting DNS to external providers in the phone (not sure if if affects the hotspot though). I looked at easy tether but root version was pretty expensive. I also googled XDA VPN Hotspot but I'm not sure which app you mean. Do you have the link?
Right now I'm just thinking of factory resetting the phone and installing the latest oxygen version (I'm still on 9.0.0.0).
Here is even more testing:
What I am experiencing is that there are grave problems trying to connect when in an area with a lot of wifi networks.
I live on the countryside and I thought I would try using hotspot for a couple of times. Thing is, at home, sharing hotspot from the phone to my laptop always works instantly, both on 5Ghz and 2.4Ghz. I might add that there are basically no wifi networks interfering where I live, except for my own. When I start my bus ride in the morning from my house to a city were I work, the hotspot usually works pretty good. But it's when I'm going home that I am start having problems. In the city, there is probably around 50-100 wifi networks when I start the ride home. And that's when it usually is impossible to connect the hotspot to the laptop. However, when leaving the city and entering the highway, it is usually easier. I have these connection problems on both 5Ghz and 2.4Ghz and if it does connect, 2.4 is hideous, it disconnects all the time.
So the conclusion for me is that it is having a very hard time connecting when there are a lot of wifi networks around. However, It never seemed to be a major problem on Oreo, only on Pie.

baxtex said:
Hi and thank you for your post. It seems that windows had changed dns settings by its own to something invalid, so that is why it didn't work. However I am still having connection issues. Mainly I find it very difficult to connect my laptop (and other devices) to the hotspot of the Oneplus 6.
1) Done.
2) Done.
3) It was already set at 64 but I tried setting in to 64 again.
DUN is still 0 after reboot. I have also removed the wifi from my PC and changed name on the hotspot. Also tried both 2.4 and 5 Ghz. When the pc is connected the hotspot, I can ping google succesfully, so internet works but not DNS, all requests in my browser times out. I have also tried setting DNS to external providers in the phone (not sure if if affects the hotspot though). I looked at easy tether but root version was pretty expensive. I also googled XDA VPN Hotspot but I'm not sure which app you mean. Do you have the link?
Right now I'm just thinking of factory resetting the phone and installing the latest oxygen version (I'm still on 9.0.0.0).
Here is even more testing:
What I am experiencing is that there are grave problems trying to connect when in an area with a lot of wifi networks.
I live on the countryside and I thought I would try using hotspot for a couple of times. Thing is, at home, sharing hotspot from the phone to my laptop always works instantly, both on 5Ghz and 2.4Ghz. I might add that there are basically no wifi networks interfering where I live, except for my own. When I start my bus ride in the morning from my house to a city were I work, the hotspot usually works pretty good. But it's when I'm going home that I am start having problems. In the city, there is probably around 50-100 wifi networks when I start the ride home. And that's when it usually is impossible to connect the hotspot to the laptop. However, when leaving the city and entering the highway, it is usually easier. I have these connection problems on both 5Ghz and 2.4Ghz and if it does connect, 2.4 is hideous, it disconnects all the time.
So the conclusion for me is that it is having a very hard time connecting when there are a lot of wifi networks around. However, It never seemed to be a major problem on Oreo, only on Pie.
Click to expand...
Click to collapse
Seems more like WiFi / Computer related than phone. Did you try USB tethering? Is DNS get manually set in your computer by something else you installed?

MetroWestMA said:
Seems more like WiFi / Computer related than phone. Did you try USB tethering? Is DNS get manually set in your computer by something else you installed?
Click to expand...
Click to collapse
USB tethering works fine, dns as well. Its just the connection, it is very difficult to connect anything to the Oneplus 6 in wifi crowded areas.

Will this effect Bluetooth tethering too? Or is there another command for that? Dang built in hot spot get horrible speed after this setting is set, at least be on T-Mobile.

Hi guys,
I also face a strange issue, the connected devices to the hotspot it keeps disconnected after some time.. 1min, 5min, 15min...is random and annoying. Dose anyone face this issue to? Tried diferent fixes but nothing works, it remained to do a factory reset to see if the problem persist..

khrisstyan said:
Hi guys,
I also face a strange issue, the connected devices to the hotspot it keeps disconnected after some time.. 1min, 5min, 15min...is random and annoying. Dose anyone face this issue to? Tried diferent fixes but nothing works, it remained to do a factory reset to see if the problem persist..
Click to expand...
Click to collapse
Read this thread. Workaround in here.