We have a number of RV345s with between 10-25 Site-To-Site VPN connections each
Randomly, all the VPNs on them stop passing traffic.
Sometimes they run for a week, sometimes for a month with no issues.
What we see in the log is nothing except the following repeated for each tunnel
Timer event for s2s_TUNNEL_NAME. is already in progress, so Do nothing...
A restart of the router fixes.