I just spent hours with support about Bluetooth and WiFi issues. They just don't seem to get it, it doesn't work as advertised. Problem is I can't return mine to the shops as I bought it off someone within the warranty period. They have replaced it once due to another issue but the 1st one and this one both have problems with WiFi and Bluetooth.
Changing your router to 5GHz does help but I can't get them to do that where I work.
It was basically left with tough, we wont refund as you didn't buy from us, we won't replace for a newer model as we don't do that so its your problem not ours.
Trying to explain to them that the 10 other devices, some years old manage it fine, and I run Bluetooth from my phone to speakers with the phone sitting next to the surface pro without issue.
Also telling them they have been aware of the issue for a long time and if they could fix it they would have seemed to fall on deaf ears.
Really, really poor customer service. I have 4 Bluetooth devices and have to use the USB slot to have a USB mouse receiver in as Bluetooth creates problems therefore leaving me no ports.
Fuming from it to be honest. I said I would seek further advice and they just said that's fine we will wait to hear from your lawyer.................