Same issue here. I use Xiaomi Redmi Note 3 Pro. It supports wireless ac. But I can't find the 5GHz band. Sent the device in warranty. They showed that their wifi receiver can find 5GHz. So, that's...

Model : Archer C50 Hardware Version : V3 Firmware Version : 0.9.1 0.5 v0079.0 Build 170822 Rel.64885n(4555)ISP : This device is TP is compatible to TP Link Cloud Service according to Tether app. But...

Yes, it's a new device and I have 11 months of warranty left. But isn't what I did violation of warranty agreement? I y confused.Thanks for response.

Model : Archer C50Hardware Version : Firmware Version : ISP : I think I have a faulty unit. 2.4 GHz band is working fine but I can't detect 5GHz band with my Xiaomi Redmi Note 3 Qualcomm or Xiaomi...