24.1.4 Problem with WAN Interface every Midnight

[Oachkatze]

Hello Guys

Since Thursday, the 28th of March, I've been experiencing an issue with my internet connection, which repeats itself every day at midnight. At this time, my LAN interface loses connection to the internet. I'm unable to resolve hostnames or ping 8.8.8.8. However, I can still access OPNsense from the LAN side using the address opnsense.abc.at.

Interestingly, a ping from the OPNsense interface diagnostic works perfectly fine. The firewall does not show any disruptions in the gateway or other connection drops on the interfaces.

To temporarily resolve the issue, I've already taken various steps, such as editing and saving the gateway, and restarting the ISP modem. Afterward, the internet worked without any problems.

I haven't contacted the internet service provider yet.

My network setup consists of the following components: ISP modem -> OPNsense -> Switch -> PC/AP. I receive a static external IP address from my provider, which I can obtain both dynamically and statically (I've tried both variants unsuccessfully).

During the remaining 24 hours, the internet connection works perfectly fine. Unfortunately, I can't specify exactly when the update to version 24.1.4 was performed and whether it's related to this issue.

I would greatly appreciate feedback and assistance in resolving this problem.

Regarding log files, I couldn't find anything unusual in the GUI. If you need anything specific, please let me know where to look. Thank you.

Simon

P.S. I can still access the external websites/applications I have running at home via nginx from external sources