HT202222: How to troubleshoot Wi-Fi connectivity in OS X Lion or earlier

Learn about How to troubleshoot Wi-Fi connectivity in OS X Lion or earlier
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Q: Mac OS X wifi does not wake after sleep since Yosemite upgrade

Specs:

MacBook Pro 15" Late 2013

Arris Cable Modem/wireless router; 2.4GHz + 5GHz (both are saved under my list of memorized APs).

 

 

Problem:

Nothing until upgrade to Yosemite (10.10.3). After upgrade, my WiFi conn struggles to connect (if at all) after waking up (power plugged in, just had lid closed...e..g, when I wake up in the morning or get home from work)).

 

 

Work Around:

If I wake connected to one AP (2.4 or 5), I switch to the other AP in the menu bar dropdown. It works. (But WHY...never had to before...)

 

 

Attempted Solutions:

Various. Delete bluetooth; delete saved APs list; reboots; updates; blah blah. Still, nothing!

 

 

Actual Solution:

By complete chance, I needed to buy another wireless router (N7000 Nighthawk...the 802.11ac setup)...for reasons not worthwhile to mention in this forum. After configuration, BOOM goes the dynamite, laptop is no longer suffering from connection issues! Working EXACTLY the way it was before Yosemite, albeit much faster (300Mbs down now, TWC service).

 

 

Commentary:

WFT is the deal with Mac OS X?! All other devices work fine. This laptop worked fine until Yosemite. Now it works fine on Yosemite with a new Wireless AP. All configurations stayed the same...MTU, etc... (although I'm now using AC instead of N...maybe there's something to that exchange for the driver)

 

 

Maybe there's some info in my experience that will get Apple off their lame arses and fix their ****.

MacBook Pro with Retina display, OS X Yosemite (10.10.3), The Bird is the Werd

Posted on Apr 29, 2015 8:36 PM