Over the past couple of days my RB2011UiAS-2HnD-IN has been losing network connectivity on ports 1-5 seemingly without warning. The logs don’t seem to show any useful information besides links 1-5 going down followed by them going back up 2 seconds later. I have tried a general reboot however it doesn’t seem to have had any effect.
How can I further debug this.
Either one or second end or the cable is guilty. Change everything and see.
Unplugged port 4 and no problems so far. Why does it fail on all ports without any reasonable message?