I have same problem. Two routers with 1.8.5 firmware. Have working tunnell and can ping devices on the other net, but not the VPN router it self, with the 192.168.10.1. Switch with the ip 192.168.10.3 is pingable. My side is in the 192.168.1.0 range. Why can't I access the router it self with the VPN service itself?
I have the auto firewall and nat option enabled.
Best Regards
Magnus