We are on 28.5 and have the issues. Currently pending firmware upgrade to 28.7 or 29.5.1 depending on downtime windows which are a huge problem in our environment. It's really bugging me the number of peoples sites that seem to have this problem and no real response from Meraki. Also given that this issue seems to have been going on for quite a while, I would have expected it to be at least acknowledged by TAC. And that the minute I engage TAC since 28.5 is marked as 'critical' I get the canned "Upgrade the firmware" response is pretty annoying, as I point out the release notes do not contain any mention of this issue or an issue similar.
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