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
Somehow I love the idea that this is not real and you are just testing your followers 🤨
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If I were, they’d be doing a pretty great job so far
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Replying to @stilkov
Same here with an old Macbook Pro. The wifi chip itself gets old and stop working correct. Replace this module is difficult. I use an external mini usb wifi dongle now for most of the time.
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Replying to @stilkov
I don't know much about those UniFI access points, but it might be worth trying to disable 5 GHz in your network. On my home network it helped wonders where my laptop always had connection problems but other devices worked fine because they don't support 5 GHz.
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Replying to @stilkov
To rule out hardware defect you may try to install fresh copy of macOS on separate volume. I know that’s a bit overkill, but macOS sometimes manifests Window-ish behavior.
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Good idea, tried it, didn’t work