Android Question [FIXED] B4A Bridge disconnecting ?

svanneste · Nov 18, 2022

Hi,
I upgraded to B4A 12.0 and I'm no more able to connect B4A to B4A Bridge (2.65) on a Moto 30 Neo (Android 12).
It connects some seconds then disconnects.

The router did not change. The app on the phone was working previously.

The only thing that changed was a security update of the phone (android patches until september 1st) in the same time of B4A's update.

Do you have an idea, maybe ? Thanks

emexes · Nov 19, 2022

svanneste said:
Do you have an idea, maybe ?

My first tack would be:

Uninstall B4A-Bridge, phone off, wait 5 seconds (will feel like 30 seconds ?), phone on, re-install B4A-Bridge.

In fact, while waiting those long 5 seconds, I'd probably go turn the router off and on too (if B4A-Bridge is being used via network).

emexes · Nov 19, 2022

emexes said:
My first tack would be:

Actually, that'd be more like my fifth tack; I was assuming you've already tried the obvious of shutting down B4A-Bridge and all other apps and then restarting B4A-Bridge, of disconnecting and reconnecting network, of phone off and restart, etc.

svanneste · Nov 19, 2022

Hi,
You assumed right of course and thanks a lot for your idea. I have tried what you suggested by closing all, uninstalling, restarting the router, etc. But no luck on that part.
The best I got with a fresh install of B4A bridge was its Main activity going on the top of the other apps while put in the background.

I will try using the source code of B4A bridge. Maybe some errors could be printed in its logs. I'll send more information.

emexes · Nov 19, 2022

Have you got an easy way of running the previous version of B4A itself? Like, could you temporarily rename the B4A directory in "C:\Program Files\Anywhere Software" and restore the previous version and see if that connects to your phone any better?

Lol I've just discovered:

so perhaps I should tidy up my own front yard first before advising others. ?

Erel · Nov 20, 2022

svanneste said:
It connects some seconds then disconnects.

This happens when you have multiple instances of B4A running and trying to connect to B4A-Bridge.

Nothing has changed in v12.0 in relation to B4A-Bridge.

svanneste · Nov 20, 2022

Thanks @Erel. But there is no other instance of B4A running. I restarted the computer. I don't think it"s on B4A side but more on the update of the phone (maybe). Reason why I asked for some idea (if any and after having searched the forum).
The behavior is, at the bottom of B4A window : connecting, disconnecting, etc.

I will try to find other fix (maybe) and maybe with the source of B4A Bridge i could see anything in the logs. Thanks again

epiCode · Nov 20, 2022

svanneste said:
Thanks @Erel. But there is no other instance of B4A running. I restarted the computer. I don't think it"s on B4A side but more on the update of the phone (maybe). Reason why I asked for some idea (if any and after having searched the forum).
The behavior is, at the bottom of B4A window : connecting, disconnecting, etc.

I will try to find other fix (maybe) and maybe with the source of B4A Bridge i could see anything in the logs. Thanks again

Mostly it is due to multiple copies of B4a trying to connect as Erel pointed out, however, check if you have any other application which runs its own copy of adb.exe or aggressively kills those started by other processes.

emexes · Nov 20, 2022

svanneste said:
I don't think it"s on B4A side but more on the update of the phone (maybe).

Does B4ABridge still work on and connect from other phones?

teddybear · Nov 20, 2022

svanneste said:
Hi,
I upgraded to B4A 12.0 and I'm no more able to connect B4A to B4A Bridge (2.65) on a Moto 30 Neo (Android 12).
It connects some seconds then disconnects.

The router did not change. The app on the phone was working previously.

The only thing that changed was a security update of the phone (android patches until september 1st) in the same time of B4A's update.

Do you have an idea, maybe ? Thanks

Did you connect to b4a bridge after opening a project?

svanneste · Nov 21, 2022

emexes said:
Does B4ABridge still work on and connect from other phones?

Yes it's connecting to another phone.

And it is fixed now. Here is how I did (it can be reproduced as I played it twice).
- I uninstalled B4A Bridge 2.65
- reboot the phone
- reinstall the BA4 bridge app
- let B4A Bridge app on STOP
- initiate the connection to the B4A bridge IP from B4A
- put B4A Bridge app on START

Then it will connect. After that, it will connect without any other trouble.
Hope it can help someone in the future

Android Question [FIXED] B4A Bridge disconnecting ?

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