Thanks to badjedi for pointing this out. I have verified that the X Tether module for the Xposed Framework will allow you to successfully tether using the stock app provided with the Z3v.
This is primarily for those of you who have a Grandfathered Unlimited Data Plan with Verizon Wireless and would like to not have to pay for tethering while we wait for customs roms. I apologize in advance for not being able to post links. The required files are attached.
If you are not already rooted, please follow GigaSPX's guide on how to root your Z3v.
Please download and install wifi_tether_v3_1-beta14.apk from code.google.com/p/android-wifi-tether/downloads/list
Open the installed app and verify that Disable Update-Check is selected under settings
Press the big button to start tethering. Click grant when prompted for root access. The big button will turn yellow. Press it again to stop tethering. You will get a bunch of errors during this process, this is normal. This will install the required binaries and config files to /data/data/com.googlecode.android.wifi.tether/
Restart your phone.
Verify that tether.edify is located in /data/data/com.googlecode.android.wifi.tether/conf/ using root explorer or another file manager of your choice. If it does not exist repeat the above steps.
Replace tether.edify with my modified version located in the attached tether.7z archive.
You can now tether over wifi using this app.
NOTE:
Enable WiFi-Encryption does not work.
Enable Access-Control does work and can be used to prevent unauthorized access to your network.
Make sure under Advanced Wi-Fi in your system settings the option Scanning always available is checked.
I followed your steps exactly, but it doesn't seem to be broadcasting. I don't see a wifi signal from the phone on my computer or ipod, even though it says it is broadcasting. I've uninstalled the app, cleared the data, and reinstalled app using the procedure above twice. Any suggestions?
badjedi said:
I followed your steps exactly, but it doesn't seem to be broadcasting. I don't see a wifi signal from the phone on my computer or ipod, even though it says it is broadcasting. I've uninstalled the app, cleared the data, and reinstalled app using the procedure above twice. Any suggestions?
Click to expand...
Click to collapse
Answer:
Make sure under Advanced Wi-Fi settings the option Scanning always available is checked.
Extra info:
This is needed because I haven't found the name of the wifi kernel module and this setting keeps the module loaded even when wifi is switched off. Also, if you are using windows 8.1 you may not be able to see and connect to an ad-hoc network without using the command prompt. For some reason Microsoft decided to remove this default functionality after Windows 7. Not relevant here but...It is the same for recent android kernels, no support to connect to ad-hoc networks through the Wifi settings without using shell commands.
I haven't had much time due to work, but I am certain infrastructure mode will work on this phone. I can't promise I'll get it done anytime soon though since work is going to be way to demanding for a couple months.
FYI, I've discovered that the Xposed mod X Tether works to enable the native hotspot without the entitlement check.
badjedi said:
FYI, I've discovered that the Xposed mod X Tether works to enable the native hotspot without the entitlement check.
Click to expand...
Click to collapse
+1
I sure would've loved if this discovery was made at least 2 weeks ago. The stupid entitlement checking wouldn't let me hotspot from a foreign sim card while I was in Thailand.
Thank s
Related
Hello all I am paying for a wireless tethering plan yet the mobile hotspot seems to time out every 12 seconds. It will lode a web site usually half way before my data just drops to 0 kb/s and I have about 4 bars of lte. I don't know if there is a way to fix this, I have tried turning it on and off and rebooting but nothing seems to help this issue. When it stops responding to my computer the device name changes to a * and then it will not send data anymore. Any help would be much appreciated.
Thanks
I'm running into the same problem as well. I can tether through USB just fine but whenever I use the mobile hotspot my internet starts to timeout. I'll be lucky if I can go 5 minutes without it timing out.
Are either of you using Tasker? I had a very similar problem where I was using Tasker to determine when I was home by toggling Wifi to check for my home network and then setting sound profiles. I found that tasker would toggle the wifi which caused my wifi tether to stop working. It would look like it was on, but wouldn't send data. I fixed it by having tasker stop toggling wifi when running my wifi tether app..
Any smart action profiles set? Turn it off & see if it continues.
Sent from my DROID RAZR using xda premium
Mmh, I've got the EU RAZR (don't have to pay to route my connection where I want) and the Wireless Tethering is working flawlessly (HSPA+).
Maybe they haven't used the same software OR they've used the same software but there's a problem when LTE is ON.
Anyway, the EU RAZR is about to get an OTA...and VZW one should as well.
norm807 said:
Are either of you using Tasker? I had a very similar problem where I was using Tasker to determine when I was home by toggling Wifi to check for my home network and then setting sound profiles. I found that tasker would toggle the wifi which caused my wifi tether to stop working. It would look like it was on, but wouldn't send data. I fixed it by having tasker stop toggling wifi when running my wifi tether app..
Click to expand...
Click to collapse
I'm not using Tasker and I my Wifi is off the whole time. I have tried resetting my phone but I my connection still times out.
garywojdan81 said:
Any smart action profiles set? Turn it off & see if it continues.
Sent from my DROID RAZR using xda premium
Click to expand...
Click to collapse
Zero smart actions
kholk said:
Mmh, I've got the EU RAZR (don't have to pay to route my connection where I want) and the Wireless Tethering is working flawlessly (HSPA+).
Maybe they haven't used the same software OR they've used the same software but there's a problem when LTE is ON.
Anyway, the EU RAZR is about to get an OTA...and VZW one should as well.
Click to expand...
Click to collapse
You may be on to something here. I'm going to try to wifi tether on 3G to see what happens.
I'm finding tethering is better with 3g than 4g for some reason.
kholk said:
Mmh, I've got the EU RAZR (don't have to pay to route my connection where I want) and the Wireless Tethering is working flawlessly (HSPA+).
Maybe they haven't used the same software OR they've used the same software but there's a problem when LTE is ON.
Anyway, the EU RAZR is about to get an OTA...and VZW one should as well.
Click to expand...
Click to collapse
Setting the data connection to 3G didn't help. It took a little bit longer to time out this time but it still happened.
So I kind of figured out why I'm getting timed out, but I'm no closer to a solution.
When I tether through USB, 4G will stay connected. Nothing wrong with it.
When I tether through WiFI, I time out because the 4G connection drops after a few seconds and when 4G is re-established. The 4G connection does not have data, even though it says 4G. I cannot access data on my phone or on any tethered device.
When I turn off the mobile hotspot, then my 4G will drop again and when 4G is re-established, then data starts to work again.
edit:
Maybe I have a faulty phone. I'm going to try to exchange it this weekend.
Are you rooted?
facinater said:
Are you rooted?
Click to expand...
Click to collapse
Not rooted.
I have tried mobile hotspot after a full reset with the same results.
Same problem here in canada with rogers model unlocked and rooted jsing telus
Software bug because with others wifi tether program all work great ... i just wait an update
Sent from my XT910 using xda premium
under settings--->wireless--->mobile networks--->access point names do you ave any options?
i had 2 APN's and when i selected the tethering APN it seemed to work for me.
(rogers XT910)
I have similar problem connecting a Kindle Fire to a Verizon provisioned hotspot. Web browsing doesnt work but music, videos, apps, and books seem to work. I haven't had a chance to check but on the Thunderbolt we had a similar issue and it turned it to be bad dns server for the wifi connected devices.
I don't have the ability to set a custom DNS server on the Fire so I can't check this at the moment. I'll report back when I can verify if this is the issue with a laptop.
I have a EU razr and I also have problems with Wifi tether - my computer can connect fine but I get "limited connectivity" and no Internet access. Worked without issue on SE Arc with same provider and APN settings.
What other Hotspot apps are out there that hopefully work better?
Same issue.
From what I have been reading on other forums this is a known issue that Motorola is working on and the ETA for the fix is no more than two weeks. We'll see.
This seems to work
I tried the steps below and haven't had a drop in the last 15 minutes. I'm not a network guy so I don't know the reasoning behind why this worked for me, but so far so good. If you're not comfortable messing with the Registry, then don't try this. I used a spare PC to test it first.
Change the Default Maximum Transmission Unit (MTU) Size Settings
1. Click Start, click Run, type regedit in the Open box, and then click OK.
2. Locate and then click the following subkey in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NdisWan\Parameters
3. Add a Protocols subkey (if it does not already exist). To do so:
a. On the Edit menu, point to New, and then click Key.
b. Type Protocols, and then press ENTER.
4. Add a 0 (zero) subkey to the Protocols subkey. To do so:
a. Click the Protocols subkey that you created step 3.
b. On the Edit menu, point to New, and then click Key.
c. Type 0 (zero), and then press ENTER.
5. Click the 0 subkey that you created in step 4.
6. On the Edit menu, point to New, and then click DWORD Value.
7. In the Value data box, type ProtocolType, and then click OK.
8. On the Edit menu, click Modify.
9. In the Value data box, type 800, make sure Hexadecimal is selected under Base, and then click OK.
10. On the Edit menu, point to New, and then click DWORD Value.
11. Type PPPProtocolType, and then press ENTER.
12. On the Edit menu, click Modify.
13. In the Value data box, type 21, make sure Hexadecimal is selected under Base, and then click OK.
14. On the Edit menu, point to New, and then click DWORD Value.
15. Type ProtocolMTU, and then press ENTER.
16. On the Edit menu, click Modify.
17. Under Base, click Decimal, type the MTU size that you want in the Value data box, and then click OK. ( I used 1400)
18. Quit Registry Editor.
19. Restart your computer.
On the Razr: Open Mobile Hotspot Settings-> Configure Mobile Hotspot. At the bottom, change the Client (DHCP) start address to 172.168.20.10
ghirsh said:
From what I have been reading on other forums this is a known issue that Motorola is working on and the ETA for the fix is no more than two weeks. We'll see.
Click to expand...
Click to collapse
Been having similar problems. Downloaded the latest beta of Android wifi Tether from here http://code.google.com/p/android-wifi-tether/downloads/list and everything works now.
Golgo said:
I have a EU razr and I also have problems with Wifi tether - my computer can connect fine but I get "limited connectivity" and no Internet access. Worked without issue on SE Arc with same provider and APN settings.
What other Hotspot apps are out there that hopefully work better?
Click to expand...
Click to collapse
Any updates to this? Having the same problem and can't seem to make it work. Don't have a rooted RAZR so can't try the download link.
Hey! I used to have problems for a while with my tethering as well and ANY device I connected just wouldn't have access to the internet. I tried a lot of different apps, methods etc., to get it working and nothing seemed to work. But one day, I tried my own thing. I simply connected my device via wifi tethering (I don't use USB, but this should still work), and then, after it was connected, I simply opened my phones web browser to make sure I could access a data connection in the first place. And lo and behold, my tethering is working just fine!
So to put simply, what you should try is:
1) Connect your device via tethering (I used wifi, but usb should work too!).
2) Make sure you actually have a data connection! And then, open the web browser on your phone, and go to a web page (I just go to google )
3) Enjoy your tethering.
I hope this works for everyone, and not just me! XD
The last update from verizon fixed this issue.
Sent from my Kindle Fire using Tapatalk
I flashed Scott's Cleanrom ICS 4.2 and followed his instructions for the wireless tether.
When I go through all of that shouldn't I be able to go online with my laptop through the wireless tether on the phone? When I go into the available wifi networks my phone doesn't show up on the list.
Am I not understanding how this works?
Thanks-Dan
C'Mon guys, help a brotha out. 175+ views and no replies?
Thanks-Dan
Well, the answer is.... yes, probably. I'm not running that ROM at the moment, but ICS gave us the ability to tether in infrastructure mode, rather than merely ad hoc.
Having said that, there are variables out there that may be causing the issues you are having. I'm sure you have double-checked the settings and have set up wireless tether per Scott's instructions. So, here are your options (IMHO):
1) Try to find another tether app (such as Barnacle) to see if that might work.
2) Try to find an updated or different version of WiFi Tether.
3) Try the many different settings in WiFi Tether to see if they work for you.
4) Try a different ICS ROM to see if it works for you. (RezROM ICS does work for me)
5) Pay for Verizon's Hot Spot.
Good luck!
Thanks for the reply. I will triple-check all the settings again and go from there.
I had a similar problem - I was unable to see my wifi network until I renamed it.
Sent from my ADR6425LVW using XDA
The way I make it work was renaming the SSD and creating a password.
Sent From Ice Covered Blasting ReZound
TRY THIS
Go to www.downloadandroidrom.com scroll down to apk and click on it.
Next click on wifiteather.
Next click on wifi_teather_v3_0-pre14.apk
Close to the bottom of the page will be a Download Here link click on it.
If your using a PC place it on the root of the sd card if your using your phone make sure unknown sources is checked in the settings>applications menu.
Next go to the market and download and install apk installer.
Open apk installer on your phone and click on <ext_sd>
Next click on wifi_teather_v3_0-pre14.apk and click install.
After it installs click open and go to the menu sceen.
Go to settings and check Routing fix.
Next click on the access control and press on enable.
next click on the main screen to start wifi tether and click allow access from superuser.
Now check your wifi on your computer Android Tether should come up click connect.
Now on your phone go back to access control and your computer name should come up.
Click on your computer name and click apply on the bottom of the screen.
This sounds like a lot but it works.
Thanks guys, I had to rename the network and set the security. I thought I could just leave it unsecured but I guess not. It works now...
Thats good I never had to do that. But that is the only reason why I rooted my phone was for the wifi tether.
But ...
... Do any these options allow other mobile devices to see your hotspot? I'm running stock on my rooted Rezound. I tried WiFi / Wireless Tether, Barnacle, Open Garden, etc ... They let my laptop connect, but not mobile devices. I actually like Sense, and I don't really want to bother with other ROMs right now ...
Any ideas?
bloodymurderlive said:
... Do any these options allow other mobile devices to see your hotspot? I'm running stock on my rooted Rezound. I tried WiFi / Wireless Tether, Barnacle, Open Garden, etc ... They let my laptop connect, but not mobile devices. I actually like Sense, and I don't really want to bother with other ROMs right now ...
Any ideas?
Click to expand...
Click to collapse
The only two ways I was able to achieve wireless tether with infracture mode was to buy the vzw hotspot feature and / or install an ICS ROM. I can attest that RezROM ICS handles the free wireless tether app flawlessly for me (after which I killed the VZW premium service).
Hi,
My apologies if this is the incorrect section. I know the Virgin Mobile SGS2 is NOT the I9100 model, however the correct phone was not listed on this site (nearest is the T-Mobile model, but the options differ on their phone).
I'm experiencing an issue with trying to enable the wireless hotspot option for my phone. In every instance I have tried, I have received errors that ad-hoc failed to start and related problems. Let me make it clear that this version of the samsung galaxy DOES NOT have the option to turn on wireless tethering in the native settings menu (it's simply not there). My carrier most likely hid the option because it is an extra $15 a month to use the feature. I can, however, attempt to start the hotspot service with a third party app, but it runs for no more than 3 seconds and I get error 67:" Unable to connect to data network, turning off Hotspot..."
My phone is rooted and I have full access to edit system files (I did so to remove the ear-piercing camera shutter noise). I am using the stock rom and do not intend to flash a different rom to this phone. To lessen redundant suggestions that have been said hundreds of times and have failed to fix my issue, here is everything I have done:
Attempted to use FoxFi. All this app does is start the native hotspot capability on your phone, so I got the same error 67. No network connection. The network only appears for a split second when enabling the native hotspot setting, but since the phone turns it off, I can't connect to it.
Attempted to use Barnacle. I receive the error "Could not set ad-hoc mode of wlan0: Operation not supported on transport endpoint."
Attempted to use Wifi Tether for Rooted Users (for some reason this app is listed as "Not Compatible" for my phone in Google Play). Again, I receive an error that setting ad-hoc failed. All other services start successfully though, but the network does not appear for my PC to connect to.
Checked to make sure my 3G/4G is actually on and functioning.
Despite all this, I CAN utilize the USB tether feature just fine in PdaNet. It's the wireless hotspot that is eluding me. I know that flashing a different rom can get me around this issue, but I really would prefer to resolve this problem without doing that if it's possible. One thread I read said something about editing a .db file, but it was for an HTC phone and I'm a little wary to try it on my phone. I'm sorry for coming off rather cross, but I'm just a bit frustrated as every solution I find never works. It seems like this would be a simple thing to do. Is there a system file I can edit that will allow my phone to enable its native hotspot capabilities? Or something that will resolve the ad-hoc issue? Or am I blindly over-looking something obvious? If nothing will work except for flashing, then hey, at least I tried. It's not going to kill me if I can't get the wireless tethering to work, but it was one of the reasons I wanted to root my phone.
Any help would be greatly appreciated. Thanks in advance!
I randomly figured out the problem myself. Downloaded something on a whim and it actually worked. Let me go through each step so anyone else who has this same problem can try this out.
The majority of what I did can be followed here:
*Can't post the link. Thank you, forum restrictions... It's from a website called "highonandroid.com" so google that with the appropriate keywords (wifi tether, android, etc.).
But in case the link goes dead or something like that, here is a step-by-step reiteration:
1. Download Trev-E's mod for the Wifi Tether for Root Users app. I have the exact version I used attached to this post.
2. Install it, and immediately go to settings and make the following adjustments:
- Change device profile to "Generic ICS/JB (wlan0)."
- Change setup-method to "Netd-Ndc (master)."
- Tick the option "Send Netd Max Client Cmd."
- Tick "Wifi driver reload." The second one did not work for me, but try it if the first reload does nothing.
- Although the original tutorial says to tick "MSS clamping," this option is not available on my phone. But this did not stop the app from working.
3. Exit settings and hit the wifi icon. Fingers crossed it works for you!
After doing that, the app showed no errors in the log, the network name appeared on my computer, and I was able to connect effortlessly. Most importantly, the internet worked!
Also, enabling/disabling the tether DID NOT break my phone's wifi or 3G service. Everything ran fine when I stopped using the app and I didn't need to restart my phone. Putting this out there because I know some phones will trip out when enabling this feature. Good luck! And big thanks to xda's Trev-E for the app.
Thank you! That was driving me nuts trying to tether my GS2 to my tablet. I dont have the clamping option either but its working perfectly when nothing else has.
Nice instructions. I rooted my phone today (root virgin), downloaded the trev-e you have linked and got it to work. (Virgin Mobile Samsung Galaxy SII 4G)
I then tried to use encryption and the phone was just not having it, the internet connection wouldn't work anymore (laptop was connected but said there was no internet access). Frooze up the phone, had to reboot, frooze again, reboot, turn the feature off, freeze, reboot, pull battery etc etc. Finally have it working again with encryption off.
Pretty happy to have tethering working, but wish I could encrypt it haha.
Do I have the wrong TrevE using the stock ROM? (using the TrevE linked in this thread).
Now to learn what else to do in the wonderful world of being rooted...
*** EDIT- Looks like installing busybox fixed the issue!!
Thanks!
Awesome work, follow the instructions if you have virgin mobile it will work perfectly
Hi guys I really need some help here. Last night I set out to simply find a way to tether wifi from my GS3 for free. From my understanding that required me to root + download tether app with root admin rights. Apparently it appears to be more in depth than that unless I’m missing something simple. I’ll just start by giving you my specs and tell you what I’ve done so far. Sorry for the long post.
Sprint
Galaxy S3
SPH-L710
JellyBean 4.3
Hardware L710.14
Stock kernel and rom
Followed the steps in this link to root it. It pretty much walks me through using Odin to root the phone. Looks like it also installs SuperSU for superuser access. I like the fact that it’s not too invasive, which is great because I simply want wifi tethering and am not looking for a custom kernel or rom. http://honai-android.blogspot.com/2013/11/how-to-root-galaxy-s3-sprint-sph-l710.html
Supersu
When I start the phone it says “Unfortunately SuperSU has stopped”
Downloaded the apk, ran it, launched ok, asked me to disable knox and said yes, rebooted phone, got same msg that supersu stopped, runs fine after install apk but fails after every reboot. Maybe knox is screwing with it?
No supersu update on the play store
Regardless I installed root checker and says the device has root access…
I downloaded a bunch of tethering apps I thought had root access but none actually enabled tethering.
Foxfi
When I use CDMA only (used this for troubleshooting purposes) Launch Foxfi, activate wifi hotspot, “unable to connect to data network, turning off hotspot. Your plan may not have hotspot service”’
When I use LTE/CDMA the popup message is you are not subscribed to the Hotspot service. Do you want to see subscription options?”
When I cancel out of that popup it says FoxFI hotspot ready and has the wifi icon on the notification bar but can’t find the wifi network on devices
Also it never requests superuser
1 click wifi tethering free
Launch, click enable, the notification bar says hotspot connected but then I get the same error “unable to connect to data network, turning off hotspot. Your plan may not have hotspot service”, still can’t see the network on other devices
When I use LTE/CDMA the popup message is you are not subscribed to the Hotspot service. Do you want to see subscription options?”
Also it never requests superuser
Wifi Tether TrevE Mod v3.3
Launch, opens fine, asks for superuser access, click button to enable tethering, get an error in the app that says “tethering started with errors! Please check ‘show log’”
Clicking show log gives me an error of “Unable to open log file. File does not exist.”
It still shows a message “Tethering is currently running…” under the “ongoing apps” section but still can’t find wifi network on other devices
Jtether
Launch, “says turning Wifi AP on” requests superuser access, eventually gets to the same message that says “unable to connect to data network, turning off hotspot. Your plan may not have hotspot service”
When I use LTE/CDMA the popup message is you are not subscribed to the Hotspot service. Do you want to see subscription options?”
Oddly when I launch Jtether with FoxFI on I can see the FoxFI network for literally 1 second, but not long enough to connect. This only happens when I use CDMA only. When I use LTE/CDMA it never shows up at all.
.
I’ve uncovered a lot of issues but I don’t know where to start troubleshooting. Do I start with SuperSU errors or can they be omitted? Do I start with FoxFI error troubleshooting? Maybe start with finding out why TrevE’s tether mod has errors but log file can’t be found? Maybe the root method I used wasn’t ‘deep’ enough? If so what method should I use? I thought this would be way easier but hours and hours later, here I am with no wifi tethering. I hope you guys can help.
Thnx in advance!
Wrong forum this is for i9300 only
Sent from my GT-I9300
Please anyone?? I need help!!!
evo20110 said:
Please anyone?? I need help!!!
Click to expand...
Click to collapse
Read the post above! You are in the wrong forum for the model of phone giving advice here is not advised for your phone and could brick it!!
Hey I just reverted back to stock from Cherish OS, kept having way too many issues with the ROM rebooting or just freezing. I managed to get hotspot working on Cherish by editing the build prop to include:
net.tethering.noprovisioning=true
then pushing adb shell: settings put global tether_dun_required 0
Was working fine minus the crashes.
Now going back to stock I havnt had any unexpected crashes but I cannot seem to get the tethering to work anymore using magiskhide prop config. Does anyone know what else needs to be done to get wifi tethering working again? It looks like the DUN APN setting on my custom APN does not stick around after saving it, I dont know if it was enabled on Cherish OS somehow or what the difference between the two set ups would realistically be.
Edit:
Solution Provided by lentm:
"If you're rooted, try using VPN Hotspot: https://github.com/Mygod/VPNHotspot/releases"
Just enabled wlan0.
Still looking for a solution, If someone can point me to where I might need to start to resolve this I would appreciate it.
Ex; does it need a custom keneral? or Radio?
What is the limiting factor, that doesnt allow the connected device to get internet?
If you're rooted, try using VPN Hotspot: https://github.com/Mygod/VPNHotspot/releases
I can confirm the linked app works and replicates the built in Wifi Hotspot feature. I have it running on a T Mobile, bootloader unlocked, rooted, stock firmware, and on Android 11. Worked with my desktop, other phone, and Smart TV. I do not have it as a part of my plan. No VPN, port, or other nonsense to setup on the client to get it working. Just put in the WiFi spot password and off you go!.
Thanks for the link! I was never able to find a way to get the built in one working with out an app of some kind. I have no idea what would be needed to patch the factory hotspot to get it working without an app.
xVoidx said:
I can confirm the linked app works and replicates the built in Wifi Hotspot feature. I have it running on a T Mobile, bootloader unlocked, rooted, stock firmware, and on Android 11. Worked with my desktop, other phone, and Smart TV. I do not have it as a part of my plan. No VPN, port, or other nonsense to setup on the client to get it working. Just put in the WiFi spot password and off you go!.
Thanks for the link! I was never able to find a way to get the built in one working with out an app of some kind. I have no idea what would be needed to patch the factory hotspot to get it working without an app.
Click to expand...
Click to collapse
Great. BTW, I think the reason why it's recommended to use with the VPN (such as AdGuard) is to hide the tether usage.
I was a bit skeptical, but after I enabled the wlan0 toggle it worked! thank you soo much I have been struggling with this for a while.
lentm said:
Great. BTW, I think the reason why it's recommended to use with the VPN (such as AdGuard) is to hide the tether usage.
Click to expand...
Click to collapse
Something to note here I wasn't using Adguard and had no issues with the hotspot vpn app. I wasn't using the "Temporary Hotspot" toggle in the app either. Using the wlan0 option gave me Internet on any device I tried while on T Mobile service / Towers. I went out of town and I'm now roaming on US Cellular indicated on my notification bar. This hotspot method stopped working for me. I could connect to the hotspot but no internet. After some research I found using Adguard does resolves this as you mentioned. In the VPN hotspot app you must choose "tun0" as the upstream interface.