@Gandalf wrote
...I believe that the Cisco AnyConnect doesn't play well with certain dynamic IP ranges (I could be wrong though)
Just to pipe in and add some clarity here. Cisco AnyConnect is a dumb client. It has no bearing on your ability to connect to a VPN using a Plusnet connection. In fact, our very own corporate VPN is dependent on AnyConnect, and there are zero issues connecting to that from any of our dynamic IP ranges.
What is of relevance is:-
- Whether or not there is a clear routing path between the client and the VPN endpoint. If the routing is broken, traffic cannot get to the endpoint to establish the tunnel.
- How the endpoint treats the traffic once it gets to it i.e. does it consider certain IP ranges to be outside of the UK and refuse connection attempts?
In order to establish which of the above we're looking at, the first port of call is normally to ask the administrator of the VPN endpoint to check their logs and confirm:-
- Whether or not traffic from your IP address is hitting their server.
- Assuming it is, what else do the logs contain?
It can also sometimes help to provide a (preferably UDP) traceroute to the IP address of the VPN endpoint from the Plusnet connection.
Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵
