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Well it just failed when I tried to send 1.6 GB file over fiber using SCP. I do have  IDS enabled I wonder if I have misconfigured or if it is too aggressive for the machine running the OpnSense?

Crowdsec isn't installed. I wonder if it is hardware on this computer.

I will try the upgrade path but I may have confirmed that there is at least an interaction between ProxMox server hosting the VM and the OpnSense firewall.

I configured my ProxMox to run over old GW which runs over now defunct firewall (Fortigate E60) and I didn't experience any of the issues associated when I send it over OpnSense IP address.

I'll try upgrade path tonight.

Thanks.

I am running into really odd issue.

Background:
I am running community version OPNsense 24.1.10_8-amd64 on Dell Intel i3 10K, with 8 GB of ram and an SSD HDD. It is using integrated network card and I've added another one so it can function as a firewall machine.

I have enabled WireGuard for VPN and that works great even though I had somehow two users using same VPN IP but that has been found and fixed.

There are a few servers and I also have ProxMox server behind the OpnSense with Ubuntu Server VM.


This is where problems start.

When I try to compile a program that has to pull down an image or download anything that is bigger than 100mb I get into 1/2 dead connectivity.

What happens is that all communications cease so if I had remote desktop to a windows server that connection will drop and I can't reconnect, I can't establish any new SSH connections nor RDP sessions or see server shares I could.

However I am still able to view the OpnSense interface and if I issue reboot command from there everything goes back to normal.

We have 100mbit dedicated connection so that's not an issue. I suspect machine I'm using is the culprit. Any suggestions?