Recently while trying out Holographic Remoting I have noticed that the HoloLens 2 will not connect to a 5GHz mobile hotspot provided by my computer. Due to the HoloLens' onboard 802.11ac WLAN chip, I would expect this to work. My computer is capable of 802.11ac and is configured to do so in the device manager.
Windows 10 Enterprise and Windows Holographic version 2004 is installed.
Steps for reproduction:
If I change the band to 2.4GHz in the hotspot settings and refresh the list in the HoloLens, the network appears. In addition, a 5GHz network will also appear when the Hololens is connected to a Netgear R6120 WLAN AC1200 router.
Has anyone experienced this same behavior when using the Windows Mobile Hotspot?
Thanks to Mihai at Microsoft Support, I have a solution to this issue:
Disable the WIFI on HoloLens, then enable the 5ghz Hot-spot on the laptop, then enable the WIFI on HoloLens, the hotspot will be detected and you can connect successfully.
In my case, the HoloLens was already connected to another network. As such I needed to disconnect before the computer's hotspot would appear in the network list.