Issue with IPSec VPN – Stuck on "Connecting"

Hi everyone,

Because SSL VPN will be removed soon, I started testing IPSec VPN as an alternative on a customer’s FortiGate firewall. I used the VPN wizard to set it up. The users who should connect are part of a remote LDAP group.

When I try to connect with FortiClient, it just stays on "Connecting" and nothing happens. If I click "Disconnect", it says "Disconnecting", but also gets stuck.
If I connect using SSL VPN, everything works fine, so the problem only happens with IPSec VPN.

Tried on FortiOS V 7.2.11 and 7.4.7 and Forticlient is 7.0.9.0493

I have encountered this problem now on several FortiGates with different IPSec setups.

In another forum, some users said that installing Microsoft Visual C++ Redistributable fixed it for them. I tried that, but it didn’t help in my case.

Has anyone else had this issue and found a solution?

Thanks a lot!