I made an VPN Tunnel between paloalto and fortigate(3 tunnels).
Every config is same between them. 2 of them work well but 1 tunnel has an issue.
About 3 mins before phase 2 negotiation(by lifetime or other reason), traffics can't go through the tunnel.
(I can see traffic logs that incomplete).
After negotiation and install sa, it works normally.
What should I look? There no error log or fail in ikemgr or system log.