@imburr said in Firewall *Stops* and Break in Logs For Extended Time:
@bmeeks Very interesting! The work PC is connected via ethernet to a 8 port switch, which then has one homerun into the main 24 port switch, which then has one ethernet cable going to LAN on the pfSense. I cannot see for a way for it to be a physical loop, can a loop still happen in this instance, due to some misconfiguration or software issues?
Most often I've seen network loops created by plugging one port into another on the same switch accidentally. It's also possible for something like bent pins on an RJ45 connector, or a faulty cable with an internal short, to cause a loop.
It's just that a completely dead network where all devices on it seem "frozen", only for everything to return to normal when you remove, or power down, one device, is strong evidence for a network loop of some sort caused by that device. In your case, that seems to be your work PC.
I would start simple by replacing the Ethernet cable for the work PC. Next, take a flashlight and carefully examine the pins inside the RJ45 Ethernet port on the PC's network connection. Look for two pins touching, or any that seem obviously bent or damaged.