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In the last few weeks my MacBook Pro has developed increasingly severe Wi-Fi problems. At first it would drop connection every 10 minutes or so, but now it cannot find a network at all. In fact, the whole Wi-Fi interface has now become unresponsive. I am unable to toggle the Wi-Fi on/off from the menu or terminal, and the tray icon is sluggish.
I have tried a number of fixes found around the internet, including this, the same things this guy tried and other diagnostics, etc etc. Nothing has made any difference so far.
However, the most notable thing I have observed is that these problems extend only to my main user account. To my suprise, logging into my guest account, I found that the Wi-Fi and associated interface was in perfect working order. Side note: internet connectivity to personal hotspot via Bluetooth is fine.
Now that I have witnessed it working fine on my guest account I cannot imagine it being a hardware issue. Any insight into this would be greatly appreciated.
Sirrah
Posted 2015-05-15T21:16:04.040
Reputation: 121
It might be interesting to enable full Wi-Fi debug logging with
/usr/libexec/airportd debug +AllVendor +AllDriver +AllUserland, and compare what logs you get with the problem account vs. another account. Note that this logging change doesn't survive reboot, so you'll have to re-issue that command if you reboot. It would also be interesting to know if Wi-Fi works fine when Bluetooth is off. Also watch Console.app's "All Messages" log for other indications of things going wrong when you have the Wi-Fi problems. BTW, by "tray icon", do you mean the Wi-Fi Menu Extra? – Spiff – 2015-05-15T22:29:49.500Hi there, thanks for your reply. Firstly, on the main account wifi works at no time, bluetooth on or off. I have turned on debugging - which log am I looking for? There is something called wifi.log in console which is my best guess. By the tray icon I mean the "show wifi status in menu bar" icon. Nothing so far is apparent from the All Messages log, but i'll update if I see anything. – Sirrah – 2015-05-16T09:22:47.200
Note, I am seeing a whole bunch of "_handlelinkEvent: Got an error trying to query WiFi for power. Resetting state variables." entries in the wifi.log from the past few days. – Sirrah – 2015-05-16T09:25:04.950
I'm struggling with the exact same issue on a 2011 MBP. I had the airport card replaced, but it didn't solve the problem, so it might indeed be a software problem... – thSoft – 2015-12-21T18:17:33.970
I tried switching to guest account, it didn't help either. For me, rebooting (and sometimes sleeping & waking) makes Airport work again for a while. – thSoft – 2015-12-21T23:19:44.257
What does the network tab in activity monitor show? Are there any mysterious processes showing heavy usage? – BonsaiOak – 2015-12-22T00:54:24.823
@BonsaiOak No. Also, upgrading to El Capitan didn't help either. Related link https://discussions.apple.com/thread/5983625?tstart=0 suggests reinstalling from scratch, might be worth a try...
– thSoft – 2015-12-29T16:10:00.577