I have no access to local network behind server

orbscan

I have access only to server.
I want also access to local network behind server.
I have not problem with my computer (ubuntu 22 LTS) to access lan behind server.
The problem is only with android devices, iphone and Ipad.
Thank you for help
Best regards

JosephS

Hi orbscan.

Can you download a terminal emulator on to one of your mobile devices and once you have established vpn connection can you try and ping the default gateway behind the server?