We currently have a VPN setup between our HQ and data center. More recently, we've noticed that there have been intermittent issues where the VPN drops. Upon review of the logs, this is the error message that I've found... "Remove IPSec SaNode". I've only briefly looked this up; however, I didn't come up with anything solid on how to solve this problem. Has anyone encountered this problem before and so, how did they fix it?
We are currently using a Dell SonicWALL NSA 3600.
Any help on this would be greatly appreciated.