IP sec phase 1 error

[Praba]

We are getting below error in VPN events .

How to solve it??? 

Please share a quick response and solutions for this??

[AEK]

You need to run debug from FG CLI:

diagnose debug application ike -1
diagnose debug application fnbamd -1
diagnose debug console timestamp enable
diagnose debug enable

[Toshi_Esumi]

First, show us the "Detail" view of the VPN event log. Otherwise, no one can know what is about.

Toshi

[Sgagan]

Here's the KB for Understanding VPN related logs:
https://docs.fortinet.com/document/fortigate/7.6.0/administration-guide/834425/understanding-vpn-rel...