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Yosemite on MBP Major WiFi issues?

I never had drop issues but what I do have is a 11Mbit/s link speed when I open network monitor both on the 2.4 and 5ghz connections. No matter what I do it's stuck at 11Mbit/s.

I rang Applecare and when they tried the usually delete and reconnect stuff, they started to blame my ISP. I decided I was wasting time from there since the support person can't distinguish between a router to ISP link speed vs a device to router switch.

I'll have to roll the system back to Mavericks I guess, so far, this 15" late 2013 spec Retina the worse Macbook pro I've ever owned. Wouldn't come out of sleep properly and still doesn't even after entire logic board replaced and OS reinstalled from scratch.
 
10.10.3 fixed all the wireless issues I was having on one of my Macbook Pros!

Starting 3 or 4 months ago, my wireless connection was frequently failing to reconnect on wake with one of my 2012 MBPs. It would authenticate to the network, but failed to obtain an IP or talk to anything. I originally figured it was a hardware issue seeing as how my other two Macs were fine and most complaints about Yosemite and wireless started earlier. However since 10.10.3, not a single issue!
 
I use BT Trackpad along with wireless mouse for my iMac. Wi-Fi never dropped past two years except for when service provider was having issues.
 
1madman1 said:
10.10.3 fixed all the wireless issues I was having on one of my Macbook Pros!

Starting 3 or 4 months ago, my wireless connection was frequently failing to reconnect on wake with one of my 2012 MBPs. It would authenticate to the network, but failed to obtain an IP or talk to anything. I originally figured it was a hardware issue seeing as how my other two Macs were fine and most complaints about Yosemite and wireless started earlier. However since 10.10.3, not a single issue!
Click to expand...

I may be speaking too soon but I think I am in the same situation. I only experienced the problem about once a week but so far I haven't seen it. Fingers crossed. :D
 
10.10.3 fixed my remaining wi-fi issues too.

I have 5GHz 802.11ac and I was experiencing the following two issues:

1) On waking the rMBP, the network wouldn't connect for up to 40-60 seconds. Now its instant - waking the laptop I can browse a webpage immediately after logging in (about 5 seconds)

2) Immediately after a reboot I would be able to download over my ac network (from a network drive) at around 60MB/s which is what I would expect. However after a random amount of time (or always after waking from sleep) I would only be able to download at around 4-6MB/s and would never be able to get the speed back up unless I rebooted.
Now I can download at max speed at all times.

Happy days, Yosemite is now pretty much ready for public use after 3 major patches ;-)

Now if only they could make the brightness/colour-palette of the UI slightly lower so it doesnt make it hard to look at......
 
koruki said:
I never had drop issues but what I do have is a 11Mbit/s link speed when I open network monitor both on the 2.4 and 5ghz connections. No matter what I do it's stuck at 11Mbit/s.
.
Click to expand...

I have almost the same problem. I can establish wireless N (5GHz) at 20 MHz connection at 300 Mbps/sec but unfortunately after I connect with AC (5GHz) either at 40 MHz or 80 MHz I am stuck at 11 Mbit/sec (Network Monitor - Link Speed).

I am using WP2 Personal AES encryption so it should be working.

I have a MBA ( mid 2013) and ASUS RTAC87U.

Another thing I noticed that even with AC connection my Tx rate tops at 867 Mbit/sec but the Mac and my router should easily do 1300 Mbit/sec.

I think the Wifi broadcom driver is messed up. Once I even saw PHY Mode:802.11ac when I was connected at 2.4 GHz.

What was your solution ? Did you revert to another OS version ?
 
KonradPL said:
I have almost the same problem. I can establish wireless N (5GHz) at 20 MHz connection at 300 Mbps/sec but unfortunately after I connect with AC (5GHz) either at 40 MHz or 80 MHz I am stuck at 11 Mbit/sec (Network Monitor - Link Speed).

I am using WP2 Personal AES encryption so it should be working.

I have a MBA ( mid 2013) and ASUS RTAC87U.

Another thing I noticed that even with AC connection my Tx rate tops at 867 Mbit/sec but the Mac and my router should easily do 1300 Mbit/sec.

I think the Wifi broadcom driver is messed up. Once I even saw PHY Mode:802.11ac when I was connected at 2.4 GHz.

What was your solution ? Did you revert to another OS version ?
Click to expand...

Yes, Applecare support person was useless and said he had to ask his manager, when I quested what his manager was going to do, he said oh he didn't know. The manager was meant to call me back the next day, nothing. I couldn't be bothered as I work in software and if they weren't aware of any hardware issues there isn't anything anyone could do not even if Steve left a memo on his will to fix my wifi.
 
Wifi is still broken.

5GHz band:

- higher channel not working ( 149...)
- lower channel works fine (44...)

2.4GHz works fine.


iPhone6 is always working, no matter on which channel the 5GHz band is. So it must be yosemite fault.
 
KonradPL said:
I have almost the same problem. I can establish wireless N (5GHz) at 20 MHz connection at 300 Mbps/sec but unfortunately after I connect with AC (5GHz) either at 40 MHz or 80 MHz I am stuck at 11 Mbit/sec (Network Monitor - Link Speed).

I am using WP2 Personal AES encryption so it should be working.

I have a MBA ( mid 2013) and ASUS RTAC87U.

Another thing I noticed that even with AC connection my Tx rate tops at 867 Mbit/sec but the Mac and my router should easily do 1300 Mbit/sec.

I think the Wifi broadcom driver is messed up. Once I even saw PHY Mode:802.11ac when I was connected at 2.4 GHz.

What was your solution ? Did you revert to another OS version ?
Click to expand...
Maybe you already know this by now but... Actually your MBA has only 2 streams of AC (has only two antennas)- So 867Mbps is max connection speed. You have to go for the Pro's to get 1300Mbps connection speed (has 3 antennas). One stream/connection = 433Mbps.
 
I'm still having issues as well, on both G and N bands, but the problems have changed somewhat.

Instead of dropping the connection, I can only push 20-30Mbps through my Asus RT-N66U router via WiFi. Other devices work fine, hooking the MBP up with Ethernet solves the problem.
 
I'm also having WiFi issues, can't pinpoint what release the issue started. But I just can't get it working as intended, not sure If my Wireless PCI card is on the fritz or It's the software, but my machine was working perfectly fine for many months before.
 
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