[Q] Not connecting to AC wireless 5GHz

[NoSyt15]

I've tried searching for this but haven't found anything. Apologies if I am doubling up though.
Anyway:
I recently got a router that can broadcast a 5GHz AC wireless channel. I set it up and got my wife's phone to connect to the 5GHz channel perfectly fine, but my OnePlus One will not even see the channel.
Weirdly though, if I switch the OPO to detect 5GHz bands only, it picks up my neighbours ac wireless, but still won't connect to mine. I've entered the details manually with no luck at all as well.
The SSID's are completely different.

Any ideas or help would be greatly appreciated.

I'm runnning Cyanogen OS 12 (12.0-YNG1TAS2I3)
phone is also rooted with TWRP 2.8.7.0

 

[Framedtrash]

Change the channel the 5ghz broadcasts on
Mine works fine on 5ghz

Sent from my Oneplus One using XDA Free mobile app

 

[NoSyt15]

Change the channel the 5ghz broadcasts on
Mine works fine on 5ghz

Sent from my Oneplus One using XDA Free mobile app

I changed the channels with no luck. It seems to refuse to connect to just my router.

 

[NoSyt15]

So if anyone looks this up because they also had this problem: I fixed it.

Turns out this was a problem with the ROM. I switched to the CM nightly builds and it connected to my AC wireless channel fine. It also allowed me to send and receive MMS messages again, so there was clearly just something wrong with my build of CyanogenOS.