WiFi Issues after 10.11.2 update.

Hi Captainsniz

There are a few things to try. Keep going until the problem disappears.

First, if you haven't already, shutdown the computer fully, wait about 1 minute and then restart.

Disconnect from the wifi network either via System Preferences or by holding down the "Option" key and clicking on the wifi Menu Bar icon.

Reset the DHCP lease by going to the System Preferences>Network and Show Advanced Options then click on the TCP/IP tab "Renew DHCP Lease" button.

You can delete the wifi network from System Preferences>Network>Network Name… then close out System Preferences. Then reopen and add the Network back in.

You can also reboot your wifi router, this clears out old connections. Most routers you just turn them off and wait a couple of minutes and then restart. You may also want to reset your ISP modem if you have one.

Finally, you can try resetting the PRAM and SMC on your Mac. I'll let you get that info from here on Apple Support KBs for your particular Mac.

Make sure to back up your computer.

Hope this helps, Greg

What does Wireless Diagnostics show?

Wireless Diagnostics

Wi-FI connection drops

Wi-Fi Problems in OS X Yosemite

Wi-Fi Problems in OS X Yosemite (2)

Wi-Fi Problems in OS X Yosemite (3)

WiFi Potential Temporary fix - Yosemite

Also try turning off Bluetooth.

WIFI AND BLUETOOTH FINALLY SOLVED, NO REALLY - YOSEMITE 10.10

If your Wi-Fi source is capable of generating a 5 GHz Wi-Fi network, try that to help avoid conflicts with Bluetooth.

Same problem here, Wifi drops every other minute or early.

MacBook Pro (Retina, 15-inch, Late 2013)

Tried reseting SMC and PRAM to no avail.

Same problem here

https://discussions.apple.com/thread/7378542?start=0&tstart=0

This worked for me (based on Linc Davis's answer)

1. In System Preferences » Energy Saver » Power Adapter tab:

- uncheck "Wake for Wi-Fi network access"

2. In System Preferences » Network:

- delete Wi-Fi from the service list by clicking the minus sign

- recreate the service by clicking the plus-sign

3. In System Preferences » Network » Wi-Fi settings » Advanced » TCP/IP

- change "Configure IPv6" to "Link-local only"

I do not know which of these steps was the answer but doing all three cleared the problem right up.

it's actually working!
did it about a week ago, no wifi problems since then

None of this is working, even turning off bluetooth and invoking spirits of well-functioning-electronic-waves.

Same problem here, with previous OSX version wifi works really well

Now I have this problems:

[First time post to this forum - as the people above helped me out by posting their experiences]

I was able to fix my problem by using this solution:

2. In System Preferences » Network:

- delete Wi-Fi from the service list by clicking the minus sign

- recreate the service by clicking the plus-sign

With one addition: I had to reboot afterwards.

No more problems encountered - and it's been 24 hour already (whereas I'd see the problems every 15 minutes or so).

Well, some spirits might have heard my incantations: disabling bluetooth helps a lot. The wifi disconnects less often, once every 20 minutes.

Eric: Well I never had problems with bluetooth before, and if I disable bluetooth I would not be able to use my trackpad, so there is a fix to get another problem.

I have a temporary solution : turn of wifi-n.

On some routers, you have the possibility to disable Wifi-n, so you'll use Wifi-g.

The wifi connection will be slower (4 to 6 Mo/s = 4 to 6 MB/s), but it will be stable, without any disconnection. And you can turn on the bluetooth.

DDid not work for me

Hi, this also worked for me - I've been having trouble with wifi not connecting up again after not using for a while - and that could be an hour, day, week!

I've also tried other things which haven't worked, but following the above 3 it now works fine, hope it keeps it up!

Cheers