Hello,Can someone help me to check what kind of filtering can prevent to succesfully complete isakmp process using certificates as it works fine with preshared keys.Both devices are cisco routers and synchronized on UTC and Certificates are OK.The on...

I recently updated about 70 routers from preshared key to certificate authentication. The most part of them works fine but I'm still searching to resolve a problem on 3 of them.When I use preshared key the isakmp and ipsec phases complete successful...