This is the response we received when I was having the issue back in the Summer.The issue eventually stopped without me making any changes to our network or the firmware. Seems to me they have yet to find the bug that's causing all the problems everyone is experiencing.  ... View more

We do have several stacks running L3, however it seems the problem resolved itself. We are still running the same firmware and haven't done any network changes.  ... View more

We are currently running MS 11.22  ... View more

Ours just stopped doing it two weeks ago. Nothing has changed on our network. So, either Meraki fixed it on their end without telling me or it fixed itself. ... View more

My most recent conversation about his issue. Obviously, it's something they can't figure out.    ... View more

It appears the bug is in  MS 11.17 firmware as well. Updated all our switches this past weekend. Since then I have had ports disabled randomly by LACP. I was able to fix that issue by selecting the port down and the next one beside it, then aggregation then switch those ports back.  Yesterday and today I had two switches become unreachable and they both were experiencing the Port STP change designated>disabled. I had to reboot both of those switches in order to get the ports back up. So it's obvious Meraki hasn't fixed the problem from the previous versions of the firmware.  ... View more