IPSEC VPN connection error

[INT1]

Hello, i have an error with connecting to IPSEC vpn IKEV2 using Azure AD email whats happening is after i get the pop up to enter the credenials after i enter and get the 2FA popup it says VPN connection is down and when i check the logs i get this error:

 

i tried turning off the firewall on the device im trying to connect from, i restarted the services, removed and redownloaded the vpn and still nothing is changing 

[INT1]

we have tried doing it while connected on hotspot and it didnt work, what i have done is tried to connect using ssl and it went through but on ipsec its having a problem connecting for now this exact issue only happened on 1 device but there is some similar issues

[tpatel]

Hello Int1, 

Run wireshark on user pc and also run packet capture on wan interface. Once vpn getting disconnect/failed compare packet leaving from fortigate wan interface to user public pc packet capture. 
check are you seen all packet. 

[INT1]

windows 11 im not sure about the NIC driver and they are each in a different country not in the same location

[INT1]

Hello, the issue is still haven't been solved till now i still cant put a finger on whats the problem, its only happening on ipsec. With ssl i can connect but trying with ipsec local user or SSO its causing an issue, we migrated from ipsec to ssl since the update and we only have ssl available for now on another firewall but we will change to IPSEC vpn

[AEK]

Hi INT1.

Does it give the same behavior when you disable MFA for IPsec?

[INT1]

i didnt try disabling MFA but i tried entering using a local user on fortigate and it was the same issue