We recently had to factory reset and reconfigure a 2830n using an ADSL WAN connection - on the LAN side we have several machines that all have a Cisco VPN soft client installed with a profile connecting to the same external IP, and previously all of these were happy to be connected at the same time. We now have a situation where if more than 1 machine tries to connect using the VPN client, any currently connected clients get kicked off.

I'm guessing this is a NAT issue...? Does anyone have any clues please?