Cannot see my LAN with openvpn

Hi,
I started an openvpn server on my N66U, I can connect from my Android phone and from my office PC (but not from my laptop in my own guest net somehow), I can access the web interface using the LAN ip, but I cannot reach any address within the LAN (no ping, no http. didn't try shared folders, don't care for now).

I concluded that pushing the lan address and client routes work fine, otherwise I couldn't connect to the lan ip of the router. Right?

Then the problem should be in the router...

Cannot see my LAN with openvpn