10.10.5 Broke my Wifi

[Rover110]

I went from Mavericks to Yosemite just before 10.10.3 came out on a late 2013 IMac 27".

I didn't use 10.10.2 long enough to notice if Wifi worked for me.
But with 10.10.3 I found Wifi unusable. (My router is TP-Link TD-W8960N).

With 10.10.4 I found I could use Wifi again.

Last night I upgraded to 10.10.5 and lost Wifi again.
I tried a reboot and it was still unusable.

For the moment I've gone back to 10.10.4

- Rover

 

[Luap]

I've read of boat loads of wifi issues with the Yosemite OS. Yet it always worked 100% fine for me, until 10.10.5 that is...
My MacMini (2012 i7) became very stubborn to connect to my own network. And if/when it did eventually connect, the connection isn't as fast as its supposed to be.

After a bit of googling, I found this:
https://discussions.apple.com/thread/7187176

After following the tips there, it seems I can now reliably connect to my own network again. Good!
But it still isn't as fast as its supposed to be. I don't think it's connecting over N, or 5ghz? And instead its using some slower wifi standard.. No idea what I should try next?

[edit] Its bad enough that I really need to see if I can go back to 10.10.4, or maybe hold out for El Capitan..

 

[border terrier]

I've been plagued with wifi issues since Mavericks though 10.10.4 seemed to resolve most issues. 10.10.5 and I am having disconnection issues on my MBP but no issues yet on my Mac Pro. Frustrating, will it never end?