Logged into our Meraki dashboard this Sunday evening (UK time). Can see that both of our core switches reported "No connectivity" today for 10 minutes. With it being the weekend no one has been in the office whatsoever.
No events are reported at all in the event logs for either of these switches since the 22nd September. Both switches are our "core" and are MS390s running the latest stable firmware 14.33.1
No events reported from our Security appliance either.
How do I look into this further? I wouldn't want this to creep up again. We have had "Bad DNS" errors on our MS390s lately which have caused downtime for users - but not this.
The other three switches in our setup are all MS225s