Yesterday at 15:10 one of our Meraki MS220 switches decided to disable all the ports connecting to MR34 wifi antennas. With the result that all antennas were powered off.
In the logs I can see for every port on the switch:-
Port STP change Port x designated→disabled
Port status change port: x, old: 1Gfdx, new: down
Why would STP disable all the ports on the switch at the same time? No other switches are affected, just this one.
I rebooted the switch and the ports were enabled again.
This switch has been working fine for 5 years.
Meraki support say:
"Once a devices has been rebooted it loses its logs.... we need to see the switch in its failing state to identify the cause"
Which isn't much help when you have 1000 students and 200 staff all relying on the wifi.
Any ideas?
Thanks,
Richard.