Recently we have been experiencing an issue with our ASA's syslog messages not reaching the syslog server. Periodically a message will get through but its fairly random. The ASA and the syslog server do reside on different subnets be it has always been this way and it has worked properly in the past. There have been a few code upgrades to the ASA and the syslog server resides in a VM environment but it recieves logs properly from all other devices. The patches to the ASA were to resolve some VPN bugs we were experiencing. Any ideas on what the issue could be?
I have this problem too.