“OS X Mountain Lion has been a painless upgrade for most users, but there are a fair amount of people experiencing some unusual wireless connectivity problems and issues,” OS X Daily reports. “Mainly, the wi-fi connection seems to drop at random, or the Mac simply won’t stay connected to a wireless network for long. Sometimes it automatically reconnects and sometimes it doesn’t.”
“If you’re experiencing these wifi issues you’re not alone, the good news is that we have a few solutions that appear to resolve the connection problems in Mountain Lion,” OS X Daily reports. “For best results, try combining both of these tips.”
Fixing OS X Mountain Lion wireless connection issues:
#1: Add a New Network Location & Renew DHCP
#2: Change MTU Size to Prevent Dropped Connections
Complete instructions in the full article here.
MacDailyNews Take: Are you experiencing wireless connection issues with OS X Mountain Lion? If so, did either or both of the fixes above correct your issue(s)? Or do you have another fix you’d like to share? Let us know below!
This works perfects for my. Greats.
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Downgrade to snow leopard driver version.
This will fix your drops:
Unzip, then unzip the Kext Utility, then drop the kext on the Utility app. Supply your password, reboot and then hopefully all is well with your Wi-Fi connection.
http://cl.ly/44180G1R3G0h
i’ve looked on a LOT of forums etc for fixes to this issue and none of them solved my wifi problems after upgrading to 10.8.
UNTIL… i did a complete fresh install of 10.8.
since then everything works great 🙂
it’s not a fast solution but it WORKS and my mac is back the way it used to be!
steps before clean install:
1) back up ALL your files – i used time machine for this
2) create a bootable OSX drive: http://osxdaily.com/2012/02/17/make-bootable-os-x-10-8-mountain-lion-usb-install-drive/
3) do a clean install: http://osxdaily.com/2012/07/25/how-to-clean-install-os-x-mountain-lion/
4) restore applications, documents, pictures, movies, etc from your time machine back up
i made sure NOT to restore any personal settings from time machine in case they screwed with my fresh install and caused the same problem again.
note: i wasted many weeks looking for a way to fix this issue and the fresh install took less than a day – wish i’d done that in the first place now as my mac works great 🙂
hope it helps!
No, that did not work. The macbook stays online, but the desktop drops the connection every time it goes to sleep. It’s a nuisance.
WIFI printer worked perfectly with mountain lion (Epson Stylus SX425W) using wifi, after installing snow leopard nothing but problems, Mac can not find printer over WIFI but can use it over USB, any suggestions please.