Wifi problem since 10.11.2

Hi, after 10 days with no driver crash and happy! Now it is crashing again... 802.11n + 802.11d (correct country code). But this time it took longer to crash but it crashed. So back to 802.11g to have a stable wi-fi.

****!!

I was entering my Airport Express configuration to change the Radio Mode to 802.11g and I was surprised that Apple released a firmware update 7.6.7 (24 May 2016). Here is the info:

Firmware update 7.6.7 is recommended for all Apple 802.11n Wi-Fi base stations including AirPort Express, AirPort Extreme and AirPort Time Capsule. This update improves the stability and performance of your base station.

This update:

• Fixes an issue which may prevent communication between clients on the same network
• Improves performance with an extended guest network
• Addresses potential naming conflicts with Bonjour Sleep Proxy

So, maybe our problems was not the MBP only but the Airport stations + El Capitan.

Back to the drawing board... 802.11n set and testing again.

Unfortunately, I don't think so. I have installed Windows 10 (Bootcamp) and the wifi doesn't drop. It's an OSX problem.

Just had my late 2013 15 inch Retina Macbook Pro replaced with a mid 2015 version and problem is gone... completely gone... Wifi is stable again.

How did you manage to get your mpb replaced with a new one?

Used my warranty...

Hello,

I I've been following this board for several months now, because ever since El Capitan I've had the same problems... Constant wifi drops..

The only solution i found that worked is what DS916 said.. To downgrade back to Yosemite! I did this yesterday and the Wifi works great again!! No drops no bad connection. It works better then before! It did suck that i didn't have a time machine backup of Yosemite but downgrading was definitely worth the trouble.

Hopefully there will be a fix in the future but for now i would recommend Yosemite!

Congrats @TheB113. Yeah, downgrading was the best decision in my opinion. Wifi works great now and no more countless hours of troubleshooting something Apple should be doing. As long as your only within a version or two of the latest OSX then life cant be too bad:) Future lesson me...always wait awhile before upgrading. Dont forget to make a time machine backup in case you run into the same problem again while upgrading to the next OSX:)

Thanks @DS916 and i completely agree!! Hahah no next i will have a backup 😀!!

(horn).... El Capitan... (horn).... El Capitan... abandon ship!! I am doing a downgrade too, I am doing a backup now and after a few minutes, welcome Yosemite 🙂

I read the latest comment and tried my luck with Sierra Public Beta 1 and found the same problem still exists.

I wish i could say it fixed it, however under heavy CPU/GPU loads the wifi would once again drop out.
Tested it while gaming online and while trying to download a larger file. Back to Yosemite for me.

You need to re-set your NVRAM.

See here: NVRAM auf Ihrem Mac zurücksetzen - Apple Support

It's not difficult.

That solved the problem for me. Good luck!

Upgrade router firmware! 😉

This is the only solution that helped me with my MikroTik router!