VPN Issue

Dear Ayufan, 

I'm using Pine64A+ 2GB, with android 7.1, everything works fine for which my thanks.
The only issue i'm experiencing that I cannot seem to connect to a VPN, such as to my openvpn server at home. This is, I can connect, but no data comes through the connection.

Is there a way to circumvent this issue or fix this ? 
Thank you