OPNSense becomes unresponsive after changing IPSec Tunnel Settings

[mbroetz]

Hello OPNSense Forum,

I have quite a few IPSec VPN Tunnels configured on my OPNSense 23.7.9. It has happened several times lately that the Firewall becomes unresponsive when I change (or just edit and save without changing anything) Tunnel Settings.

The Web GUI becomes unresponsive (the GUI is still there, but no Tunnel Settings or the Status Overview load properly), Tunnels stop working and our monitoring software cannot connect to the Firewall anymore. I can still connect to it via SSH and it seems like only rebooting solves the issue.

Do you have any idea on what the cause of this issue may be or what log files we can analyze to try and figure it out?

Thank you and kind regards.

[amw]

@Franco

Do you know the problem with ipsec? We are talking about 30 ipsec tunnels on the machine.