Firewall randomly going down.

[franco]

This might be related...

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265714 igc(4) drops link under high traffic

[CJ]

Went down twice last night between Midnight and 3AM. For about one minute each time.
I turned on GW monitoring. Shows RTT-2.2ms RTTd-.3ms and Loss at 0%
This is Comcast cable. We are trying to get them to put in fiber since they have it everywhere around them.
My 4 other locations do not have this issue and Comcast says it is not them, of course.

ISPs never want to attempt to troubleshoot transient issues.  Most techs don't know how and the company doesn't want to spend the time.  It took me months to get mine resolved.

One thing to keep in mind with GW monitoring is that you need to tell your GW to not accept DHCP leases from your modem.  Otherwise, when the GW goes down, OPNSense will switch to your modem and continue to report that everything is great.

[CJ]

The 4 NIC ports are built-in to the mini-pc

This might be related...

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=265714 igc(4) drops link under high traffic

I really have to wonder what the difference is between embedded igc NICs and PCIe versions.  From what I can tell, it seems like all of the people having issues with them are using embedded versions.  The two PCIe cards I tried have been rock solid for me.

Maybe I'm not pulling enough traffic?  Not sure.  It's my WAN so I can't easily iperf it, but I get over 1G speeds with my ISP speedtest.