BM3.0 sp3 VPN 1 master server, several VPN 3.7 clients. All LAN-based, some cable modem, some DSL. we connect, then run a remote control app through the connection. 5 clients work. 3 other clients connect succesfully, but the remote control app cannot connect to any hosts. What I see is that the 'Ip encrypted packets received' in VPN statistics never increments, but stays at zero. When the remote control app works one Ip encrypted packet is received on startup. Any ideas what might be blocking?

Encryption key size varies. Some clients it's at 40 bits, others it's at 128. I don't pick that during setup. How is it determined? Is it settable or modifiable?