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Level 1

12 points

MBP 2010 can't connect to wifi 5 Ghz

I have a router ASUS RT-N56U. My MBP does not connect to the 5 GHz wifi in OS X 10.8.2 (12C60). In Windows 7 x64 Boot Camp is no such problem.

In my family, there are other devices Apple (MBA 2011, iPad 3) and they have successfully connected to the 5 Ghz wifi.

The difference is that the MBP purchased in Russia, MBA - in England, iPad 3 - in the United States.

Router bought in Russia, but in the settings 5GHz wifi I force the American region and it runs on 149 channel.

Information WiFi adapter in the MBP:

Card Type: AirPort Extreme (0x14E4, 0x93)
Firmware Version: Broadcom BCM43xx 1.0 (5.106.98.81.22)
Supported channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108 , 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161, 165

MacBook Pro, OS X Mountain Lion (10.8.2)

Posted on Feb 27, 2013 7:44 PM

Best reply

Martin-Bisousnours

Level 1

4 points

Posted on May 30, 2017 11:58 AM

Thanks for the advice. Same happened for me when migrating from Macbook 11in Intel --> 2011 MBP 13in.

* Turn off wifi,

* delete /Macintosh HD/Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist and

* turn WiFi back on was enough.

No need to remove passwords from keychain.

Thanks again, you saved my day.

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49 replies

Mar 18, 2013 8:34 AM in response to SmokeGCH

Well, let me put it this way. You probably don't want to stay on 5GHz anyway. I did some testing for about 2 weeks by staying on my 5GHz band instead of my 2.4GHz one and I can tell you that for me, it meant less battery life and bursty data transfers instead of nice streams of flow from what I could see in my test utilities. Even my TM backups weren't running that much faster and the connected speed differences were 217Mbps for 2.4 and 450Mbps for 5. Ultimately, it seemed like I was chewing up more power using the 5GHz band and not seeing enough of an improvement to warrant it. So, I dropped my connection back to the 2.4GHz band and will simply boost the speed of it to 450 if I need faster speeds since my router supports this option. This is just FYI for, since you're so adamant on using 5GHz.

SmokeGCH Author

Level 1

12 points

Mar 18, 2013 9:41 AM in response to SwankPeRFection

🙂 It is clear that the computer consumes more power for high-speed WiFi. Just want to use the maximum possibility of my MBP.

I need too much speed for exceptional situations. Working with TM, copy large amounts of data between the NAS and other computers.

Now I went for a compromise. Switched the 5 GHz WiFi mode "a / n mixed". MBP connected to 300 Mbps.

Perhaps I will not calm down and change the WiFi module in my MBP, and eventually just updated MacBook.

Mar 18, 2013 9:45 AM in response to SmokeGCH

Honestly, I think your problem is more your router than your MBP. Some just work better than others and that's fully dependant on the chipset they have. I recently upgraded my Netgear 3700 to a WNDR4500 because I wanted the TM backup capabilities and the 3rd party firmware I tried to make work on the 3700 with TM was unreliable at best and even screwed up the base connectivity reliability at that. Ultimately, I got lucky and found one on sale and was able to apply a 25% off discount code for it, so it made sense for me to spend the $100 to get it. So far, I've been happy with it and both bands work great without issues.

SmokeGCH Author

Level 1

12 points

Mar 18, 2013 1:12 PM in response to SwankPeRFection

Clear. Friends recommended routers Netgear.

I think to build a wifi network routers Apple. Wait when they add the standard "ac".

MBP 2010 can't connect to wifi 5 Ghz