Hope this works for you - I am in the United Kingdom. Windows 10 home edition, all current updates applied as of 13.07.19
Mine worked fine until I swapped my laptop HHD for a SDD. Then all ok with 2.4Ghz, but no 5Ghz showing.
So I swapped the drives back and hey presto 5Ghz worked! So I wrote down all the settings I could find, then swapped the drives back over. 5Ghz not working. So I changed the settings to mirror those that worked on the HDD and hey presto, I now have 5Ghz. Here are the settings:
Driver version: 126.96.36.199
Laptops buit in wifi and ethernet adapters = disable
In the Archer adapter properties:
All boxes ticked apart from Microsoft adapter multiplexor protocol.
AP Mode Force = disable
Channel Mode = 2.4 & 5Ghz
Country region 2.4 = #1 (1-13)
Country region 5 = # (36-140)
IEE802.11n = enable
Multimedia = disable
Prefer 5g = enable
Radio = enable
Roaming = disable
Selectice suspend = enable
Selective idle timeout = 5
Also ensure Hotspot 2.0 use online signup to get connected = On
Fingers crossed for you!