Android Question B4A Bridge with VPN and Android 6.0.1

[yo3ggx]

Hi.
I have a Nexus 5x with Android 6.0.1 (latest update) and I am not able to use B4A Bridge when connected using VPN (PPTP).
Connection is successful, but the application is not transferred to the device.
It works ok if connected over LAN directly.
I have no issues at all if using other devices (Android 4.2 to 5.0.1).
Anyone else with this problem?

Dan

 

[Erel]

The way to debug it is to switch to USB debug mode and monitor the logs.

 

[yo3ggx]

Is USB involved in B4A Bridge over WiFi?

 

[Erel]

No. It will allow you to read the logs.

Though once you connect with USB debug mode then there is no reason to use B4A-Bridge anymore.

 

[yo3ggx]

I don't understand your sentence. I need to be able to use B4A Bridge from a remote location, when connected over VPN.
It work perfect with my other devices (pre Android 6)
How to use USB in this situation?

Thank you.
Dan

 

[Erel]

I now see.

This is not a bug in B4A-Bridge. B4A-Bridge relies on the OS network implementation. If data is not received through the VPN connection then there is nothing that it can do about it.

 

[yo3ggx]

Is stated in my fist message that B4A bridge connects successfully on both ends ("Connected" is displayed in both B4A IDE and on the device, but when I click on RUN the application does not transfer to the device. I get even a message in the IDE that the Log is connected, but nothing written there either.

 

[KMatle]

application does not transfer to the device

Did you activate "install from unknown sources"? Maybe another setting prevents it (antvir?) from beeing installed.

B4A-Bridge is just an app. From Android 5.x (depending on the ROM on the device) apps are not allowed to access the logs (like on my Huawei P8) for security reasons via WiFi/BT. Just connect it via cable and you will see the logs (not that comftable but not B4A's fault).

 

[yo3ggx]

As stated in my first post, it works perfect when connected locally over WiFi.
The problem appears only if connected over VPN and only with Android 6.

 

[yo3ggx]

I've seen something else strange. If you choose Debug mode, sometimes I am prompted on the device to install the package. but the process is interrupted in the middle.
Sometimes, still in debug mode, I get on the device the error "Parse error. There was a problem parsing the package".

 

[Erel]

Does this happen over the VPN connection?

Maybe the APK was not transferred properly.

 

[yo3ggx]

Yes, but only on my Nexus 5x. All other Android devices (more than 10) works without any issue over VPN with B4A Bridge.
Any other network connections on Nexus 5x over the same VPN works, except B4A Bridge.

 

[KMatle]

What you could try: Change the standard installer from Google to Packetinstaller (or similar via App-Manager). Seems that Google does too many checks if the apk is safe.

 

[yo3ggx]

Please read my first e-mail. It works perfect if I'm connected over WiFi in the same LAN, not over the VPN.
There is no difference in the TCP/IP connection when over VPN as I get an IP from the same subnet as the local LAN.

 

[yo3ggx]

I have tried to use B4A-Bridge-Relay-Free from Play Store.
When I click Run (F5) in B4A, B4A-Bridge-Relay... show me that several files are transfered (~100), but at the end the connection goes shortly red and then back green showing 100% and nothing is run on the device.

I really don't know what to try more.