@Kathy_Z Hello I'm attaching the images in the post itself. I tried installing the driver you provided but it's still the same issue. Thanks for your help. This is the Driver I was using:

I have a t2u nano WiFi adapter. On 5ghz band, the speed isn't constant and keeps dropping to 0 for one second before picking back up for 5 or so seconds and then again to 0. I've tested with other...