Have a VPN connectivity between our branches using Cisco 2800 router and Linksys RV042. Everything was working fine, till I tried to make some changes in NAT and Port forwarding on RV042. Finally I undid the changes, but VPN stopped working. Status is 'waiting for connection'. Restarted and verified everything.
Settings seem to be the same, but the VPN is still down. I can not ping the Public IP of RV042 from Cisco 2800, but it is accessible from outside. Similarly, can not ping Remote gateway from(2800's IP) RV042.
Could it be a firmware corruption? Please help.