@Raffi_ said in How do I debug frequent Gateway alarms:
I meant to give it a tug when hooked up to your Ethernet tester, not pfSense. The tester could give a you the false sense that the cable is good when it's actually not. Therefore, stressing the cable a bit might put it in a failing state and give you a more accurate test result. If you're still having issues, it might be easier to replace the cable. That might be worth a try anyway if you have an extra cable around.
Yea, I think those hotplug events were you disconnecting the cable when you were testing.
Never did I think it could be the cables. With my short runs I assumed cables either worked or they didn't.
Not a single error after I replaced all the cables.