I have a site to site VPN configured between my Asa 5520 ad a remote Checkpoint.
On this VPN, pcs behind Checkpoint are able to reach 3 networks behind my ASA and all is working fine.
But sometimes only a single network behind my ASA stops responding to the pcs on Checkpoint while the tunnel is still up and the other 2 networks are still fully reacheable.
The only way to restore connestions is to reset the tunnel on my Asa.
This is the log I see when the problem occurs, in the black circle. https://imageshack.com/i/m99e31j