21 devices in my house are connected to my UniFi wireless network; my macOS Mojave laptop, which was device #22 until last week, has stopped being able to connect. With more than 30 years of IT experience, I have absolutely no idea what to do about it
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The worst thing: Occasionally it *does* connect, things work for a while, then crawl to a halt, then work again. I have no idea how to reproduce or even describe the issue to support except as “doesn’t work, most of the time”

Jul 16, 2019 · 6:39 PM UTC

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The holy wrath of my family members will very soon descend upon me, once they discover what me updating all of the APs and switch means for their connectivity. Wish me luck.
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Not that it helped me so far, but option-click on the Wi-Fi symbol shows an “enable wi-fi logging” menu item that fills a /var/log/wifi.log file with quite a lot of unhelpful messages. But they seem to indicate I may actually suffer from some password/auth/roaming problem
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I’m calling it a night, will continue tomorrow. Thanks to everyone who offered helpful advice. You are awesome :)
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Replying to @stilkov
community.ui.com/questions/W… states that Disabling "fast roaming" might help.
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Seems like a good hint; how do I find out whether that’s my problem? It doesn’t prompt me for a password
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more replies
Replying to @stilkov
Verify with a different network f.e. Office or freifunk to rule out a problem on the machine. Check system logs for messages like full ap and forced handover. Have you checked the UniFi controller health metrics for the specific client ?
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Good advice, trying to figure out the cause there. Decided to upgrade everything first.
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Replying to @stilkov
Any chance you have a static ip address configuration in your mac? that might generate conflict with dhcp and cause intermittent connection failures.
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Good hint; no
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Replying to @stilkov
Did you switch to 5GHz a short time ago?
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No
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