Wifi problem since 10.11.2

This is what appears in my wifi.log when it disconnects.

Wed Dec 16 10:25:17.897 <kernel> AirPort_Brcm43xx::syncPowerState: WWEN[disabled]

Wed Dec 16 10:25:17.897 <airportd[62]> _handleLinkEvent: Got an error trying to query WiFi for power. Resetting state variables.

Wed Dec 16 10:25:18.547 <kernel> Setting BTCoex Config: enable_2G:1, profile_2g:0, enable_5G:1, profile_5G:0

Wed Dec 16 10:25:22.174 <kernel> Unexpected payload found for message 9, dataLen 0

Wed Dec 16 10:25:22.300 <kernel> Setting BTCoex Config: enable_2G:1, profile_2g:1, enable_5G:1, profile_5G:0

Wed Dec 16 10:32:17.696 <kernel> Unexpected payload found for message 34, dataLen 2

Wed Dec 16 10:32:17.696 <kernel> payload Data 06 00

Wed Dec 16 10:45:54.138 <kernel> AirPort_Brcm43xx::syncPowerState: WWEN[disabled]

Wed Dec 16 10:45:54.138 <airportd[62]> _handleLinkEvent: Got an error trying to query WiFi for power. Resetting state variables.

Wed Dec 16 10:45:54.809 <kernel> Setting BTCoex Config: enable_2G:1, profile_2g:0, enable_5G:1, profile_5G:0

Wed Dec 16 10:45:58.616 <kernel> Unexpected payload found for message 9, dataLen 0

Wed Dec 16 10:45:58.782 <kernel> Setting BTCoex Config: enable_2G:1, profile_2g:1, enable_5G:1, profile_5G:0

I too have the same problem and i tried all - removing network config files and re configured the router.. also reinstall OS X(twice) - no improvement .

I have used wireless diagnostics tool and capture the below log -

Tue Dec 15 23:48:14.981 Driver Event: <airportd[55]> _bsd_80211_event_callback: driver unavailable (reason=0xe0823801, subreason=0xe3ff8d02)

Tue Dec 15 23:48:14.981 Info: <airportd[55]> -[CWXPCInterfaceContext driverUnavailableWithReason:subReason:flags:version:]: watchdog event metric data: CWAWDMetricWatchdogData: reason: 0xe0823801, subReason: 0xe3ff8d02

Tue Dec 15 23:48:14.981 AutoJoin: <airportd[55]> Auto-join retry cancelled on interface en0

Tue Dec 15 23:48:14.981 AutoJoin: <airportd[55]> BACKGROUND SCAN CANCELLED on interface en0

Tue Dec 15 23:48:14.981 <kernel> en0: link down event, informing supplicant.

I have the same problem and found it will keep disconnecting during file download if the wifi signal is not strong enough.

When I moved to somewhere near the router, the wifi was perfect.

same problem here.

everything worked fine, but after the update to 10.11.2 my macbook doesn't get a valid ip address anymore.

what a great update!

Hi Folks,

same problem here. But as one fellow reported earlier. I have this problem just at one router (in my office). At home everything is fine.

In my case, the connection will be dropped if the rssi of the wifi is lower than around -50 dBm.

Is there anyone similar ?

Between this and zapping the PRAM should be the first thing tried after an update that seems to have issues.

I have the same model and I haven't had any issues since 10.11.2--the first without issues for me. Speed was always my problem since 10.11 even in the betas. Since you are on the beta, be sure to report this problem using Feedback because it will send in your wifi internal details directly to apple.

Something I would try before is this:

1. Delete your wifi connection completely out networking and shutdown.

2. reboot your modem after leaving it off for 30 seconds or so

3. reboot and Zap your PRAM and reset your SMC

4. recreate your wifi connection on your Mac and test

In one of the betas I had an issue with wifi, it wasn't exactly the same, but doing this fixed the problem.

I just went and Reinstalled El Capitan from Recovery Assistant, took several hours to download, same problem.

I have found reinstalls don't work well either. What I did last time that did work well was I made a Time Machine backup. Then I plugged in my USB drive with El Capitan 10.11.2 and booted from it. Then did a clean install. When it was done it asked me if I had another computer I wanted bring in apps and files over so I told it the time Machine backup and it brought in everything perfect on a clean install.

Reinstalls and repairs always end up with the same issues or worse. This actually worked.

Hopefully it all gets resolved soon and >>esteban108, make sure you send feedback or a bug report too.

El crapitan is infuriating me more day by day

The wifi disconnects itself (the icon at the top right goes to wifi-off, or empty wifi silhouette) and then tries to reconnect (wifi icon with the line moving)

I can't watch lectures, or videos without interruption, nor download a proper file from the internet.

Trying to read the news? Disconnects again halfway loading the article

Tried with wifi at different places: coffee shop, library - still does the same thing

Disconnect-reconnect

I just want these Apple no-brainers to stop adding more unnecessary features on the updates but just fix all the bugs - I have problem with apple preview crashing every 30 minutes also

Ooops just happened again while writing this

I regret having done the last update.. If I use backup then I have to go back by a month, so I'll lose files.

I didn't have any issues with the wifi before that last update