Q: I have 3 VPNS connection to 3300 but the 3rd connection fails with mismatch preshared key message. (Remote VPN dialing into 3300).

A: If you have 3 VPN profiles using the same remote Gateway (0.0.0.0) but their preshared keys are different, the router will use the first one’s preshared key to exchange, so subsequent VPNs will fail (mismatch of preshared keys). In this case you’ll need to use the same preshared key or only setup 1 VPN profile with remote Gateway 0.0.0.0.