Ubuntu can only connect from WAN to openvpn-server

[enboig]

I installed the server, created a file for my android device, and when connected I can ping my openvpn server, and access all its services, but cannot connect to any other LAN computer (or WAN).
My iptables configuration is quite long (docker is adding a lot of rules...); but I see:

-A FORWARD -s 10.7.0.0/24 -j ACCEPT
-A POSTROUTING -s 10.7.0.0/24 ! -d 10.7.0.0/24 -j SNAT --to-source 192.168.1.7

but LAN gateway is 192.168.1.1; is this correct? what else could I check?
Thanks