Can't connect to 5 GHz wireless N network

Hi Guys,

Just wanted to mention that resetting my 5GHz network to Channel 40 did the trick.

I'm using a late '13 MBP Retina, just upgraded to OS X Yosemite, with a Asus NT-66U router. No problems with the 5GHz network until the upgrade to OS X Yosemite. 5GHz Channel now at 40 seems to give a solid connection. Thanks!

I'va a mac mini late 2014 and taking a look at supported channel I see

Supported Channels: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 149, 153, 157, 161, 165

I'm missing channels: 36, 40, 44, 48.... that are EXACTLY the one provided on 5ghz by my Belkin N750 DB N+ router.

Is is normal?

btw my old macbook aluminium late 2008 had those channel.

Well I ran through all the posts in order to connect to the 5Ghz issue and nothing work. Here is what I did in order to have a late Mac mini(2007 with Lion) logon wirelessly. First thing is to remove and forget the network in is entirely, then when you see your 5ghz SSID display under new networks select it then the error will occur. Here is what I did in order to get this working. I disabled the SSID for the 2.4ghz because I'm using the same name) then I enable the WiFi password to use none. Once that was completed the Mac mini was able to connect to the 5Ghz SSID and with that I verified that there was a bug somewhere because I could now confirm the MAC mini can use the 5Ghz. The next step was I left the Mac Mini connected and log onto my access point and re-enable the WPA/2 encryprtion so that it is password protected, and as the Mac Mini disconnected I attempted to relog (this time with a password) and it work perfectly. And last but not least I enabled my 2.4Ghz and now all my devices are connected with 5Ghz and when they're out of range they connect to the 2.4ghz band

Thanks a lot man! It helped.:)

Hello All,

Just had a problem with my older Macbook Air being unable to connect to the 5GHz network. "Invalid password" error.

The fix turned out to be:

- I removed the space in my WiFi SSID, so the SSID was all 1 word.
- Changed the broadcasting channel to a set value rather than automatic.

Hopefully this helps if some of the other fixes don't work!

This help!🙂

Thanks

I had difficulty with my iPad2 seeing the 5Ghz signal on a Netgear dual band modem/router (model DGND3700). After reading this help link figured out that these settings will work:

Wireless network 5Ghz a/n

Name (SSID): YourWifiName

Channel: 157 (channel 36,44 & 149 did not work)

Mode: up to 300Mbps

*works with or without enabling SSID

Security WPA2-PSK (8-32 characters or 64 hex digits)

I had this problem too and found this post. I don't know if those complicated solutions worked for someone but for me the simplest way to fix the problem was to go to my WiFi router settings (usually via internet by typing the IP address 192...) and change the 5G channel name. And voila!

Had to set to channel 48 manually on my router as well, due to a brand new Mac Mini refusing to connect.

Apple - "it just works" was a long, long time ago. 😟

I had the same problem as the OP and my imac did not detect my 5GHZ network. I switched from automatic channel settings to a dedicated one, channel 48 (I've no idea if that's good or not!) that is supported in my imac network settings. When I had the setting on auto selection for the channels most of them were not supported for my imac. Thanks for the solution.

Ha! Thank you! I didn't even realize both my channels had the same name. Added 5g to end of the 5g channel SSID and popped right up.

Thanks, that help me. Despite that my router support the same list of channels that my mac (no one more, no one less) I changed to a fixed channel and my mac started to see the network.

Thanks

THANKS! THAT WORKED FOR ME!

Changed from Auto to Channel.157... POOF... GOLD!

THANKS AGAIN!