Unifi AP 4.0.80 firmware - Constant Disconnects for Macs/Apple Devices

Just posting this here for anyone who may be Googling for answers or anyone on the forum that has noticed connection issues with Macs/iOS devices getting disconnected on Unifi APs running the latest firmware (4.0.80). Rollback the firmware to 4.0.69 and your problems will disappear.

I’ve had no issues for years with my AP-AC-PRO and for some reason this latest update clashes hard with Apple’s wireless cards. I updated firmware just over a week ago and it’s been a week of issues. In the controller dashboard I’m seeing 336 WPA Authentication/Timeout Failures for the last 7 days, compared to 352 looking at the entire last 30 days.

So if you’re having the same issues or clients are reporting it, that’s the first place I’d start.

And for those, like me, who have never needed to rollback firmware before - it’s really easy. Select the AP in the controller, click on the ‘config’ tab -> ‘manage device’ section -> ‘custom upgrade’ - paste in the correct previous firmware download link from the Ubiquiti downloads site and hit the upgrade button.

1 Like

Thank you! I am going to be installing 5 AC AP Pros this weekend. I am wondering if I should even give the new firmware a shot. I know most of their phones are iPhones. Anyways thanks a ton for this!

1 Like

I found this while looking around the other day and it seemed at least a couple other folks were having the same exact issue with Apple devices and downgrading to .69 was the fix: https://www.reddit.com/r/Ubiquiti/comments/eqxrp6/wifi_problems_since_updating_to_408010875/ff6zr2l/

I would avoid moving to the latest for the time being unless you really want to manually re-flash all of them later if the issue pops up :joy:

1 Like