Occasionally I will have a slave server lose communication with the master usually when the T-1 to that particular building goes down for some reason, often momentarily. I've tried stopping and restarting the slave server VPN as well as the master VPN without luck. The only way that I've been able to restore communication with that particular slave is to re-boot the master server which then takes the entire VPN down (and creates phone calls from users) even though it is only for 5-10 minutes.

In watching the IKE screen the slave and master keep trying to establish a connection but never do often listing a code 51 (I believe) error.

Is there a better way around this? The connection to one slave dropped over night and I was only able to restore it by restarting the master.