We use Cisco VPN Clients to connect to a Cisco 800 router.
Sometimes, for unknown reasons, connection can not be established and the VPN Clients show this error message:
Secure VPN connection terminated locally by the Client. Reason 412: The remote peer is no longer responding
We have tried several things.This error occurs on different PCs with different types of OS (XP & Win7). The only way to get connected again is to perform a reload of the Cisco 800 router.
What could be the reason for this issue? And how can we fix it? Is there a best practive on how to debug or troubleshoot this issue?
Cisco VPN Clients = v5.0.02.0090
IOS 800 router = c870-advsecurityk9-mz.124-4.T4
Thanks so far!