My House is Gigabit Wired Ethernet. My Asus RT-N66U Router is two floors below me and so its 5ghz signal is fairly weak in my bedroom (80mbps). While my Bedroom PC is wired Gigabit Ethernet and I've had no need for WIFI in this room other than for my Samsung Note 4, I recently purchased an Oculus GO VR Headset for Virtual Cinema and want to Stream Video over WIFI to it.
I purchased a TP-Link Archer T9UH Dual Band USB Adapter to use as a WIFI Hotspot and share the gigabit ethernet wired Bedroom PC's internet. Windows 10 Mobile Hotspot setup was successful. Archer T9UH only 2meters away from Oculus Go and Note 4 phone with nothing in between. However, despite reporting Excellent and Very Strong signals they wer only connecting over 2.4ghz and the speed the Oculus GO and Note 4 were connecting to it was no faster than it was connecting to the Asus Router two floors below. I was able to go into device manager and the advanced properties of the Archer adapter and switch it to AC only which seemed to disable 2.4ghz and enable 5ghz. The Oculus GO and my Note 4 indicated they were now connecting via 5ghz. However the negotiated speeds were still a disappointing 177mbps on 5GHZ. I know there was no interference from my Asus router two floors below because I had already disabled its 5ghz radio.
I reintstalled the TP-Link drivers and rebooted the computer. Now my Oculus GO and Note 4 phone were negotiating at 400mbps. Still far short of the 1300mbps theoretical maximum. I do not expect to achieve those speeds even in ideal conditions but I have seen other Oculus GO users report 5GHZ negotiated speeds of 850mbps so I know 400mbps I am getting is not a limitation of the Oculus Go.
WIFI Analyser on my Android phone tells me I have a great signal to noise ratio. However, there is a neighbours 5ghz network only a couple of channel slots over so I would like to be able to change the channel my Archer T9UH in hotspot mode broadcasts at to move it further away. I would also like to ensure that the adapter is using the 40mhz mode instead of the 20mhz mode. After googling I can only find instructions for changing those settings on Archer Routers configuration pages but the Archer T9UH adapter doesn't have one as far as I know. I have gone through all the adapter properties and configuration sections/tabs and can find nowhere to change these settings. I downloaded the TP-Link Wireless configuration Ultility but it can't see my Archer T9UH for some reason.
TLDR: Can someone tell me how to change the Channel and 20/40mhz settings on my Archer T9UH USB Adapter in Hotspot Mode?