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Problem: 3020 connectivity lost, tunnels flipping

Hi all,

We've had this happen twice in 6 days. access to the 3020 is lost while VPN tunnels continue to flip up and down. Unfortunately, the syslog server had run out of space half an hour before the second event, so do not have the logs leading up to the issue.

Besides the obvious updating of software and hardware, would any one have any insight into possible causes? This behavior is a recent development and no changes have been made to the topology. Has anyone noticed this type of connectivity loss that results in tunnels flipping (which hints to some level of connectivity). The only solution both times were to cut power.

VPN Concentrator 3020

Software: 4.7.2K

RAM: 256MB

CPU Utilization is low, along with number of active sessions and throughput.

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