Hi. I have had a VPN set up between my 2300 and a client's 2600 for a few years with no problems. However yesterday, the client replaced the router with a 2830n and I cannot get them to connect.

Initially, the 2830 lan-to-lan profile was set up exactly as it had been previously, using an IKE Pre-Shared Key and it wouldn't work, so I created a new profile on my router but again, no luck. As far as I can tell, the setup on both routers is just as it was but no connection, although I think I have tried every combination.

Might there be something with the new router that I have missed?

Thanks.