I recently bought a Dell XPS 13 2-1 Laptop that had the Intel 8265ac card. I had nothing but trouble getting acceptable results from the upload portion of this card. It would constantly stall out at about 20mbps. I had no problems with the download portion of this card. I would take it into the room and sit right next to the router and a couple of restarts would finally have acceptable download and upload speeds over 350mbps. I take it back out to the living room and here we go again with stalling out at about 20mbps. My 9 year old Dell XPS 16 with the 5300 agn card consistently gets around 100 mbps upload speed sitting in the same chair. I finally gave up with tech support and with a couple other issues I returned the laptop to Dell.
So, I ordered an HP Spectra 15 that had the same card in it. And guess what, it does the exact same thing. The only difference is that I don't have to restart this laptop when I am close to the router to get acceptable download and upload speeds. They are exactly what they should be, in fact the upload speeds are even faster, 400+. Again, I have no problems with the download portion of this card. I go back to the same chair in the living room, and it stalls out at about 20mbps. What in the world is going on with this card. Both brand new laptops doing the exact same thing. My other devices don't do this. They are pretty consistent throughout the house. Is this card flawed or what. I read up on different things to do in the adapter advanced option, but nothing really fixes this. I can't believe that my old 5300 agn card is better with uploading speeds than this new ac card. I have At&t fiber optic with 1GB internet speeds. I'm fully aware of roaming speeds throughout the house but this is ridiculous. I'm not going to send the HP back because of this same thing. I do have very acceptable download speeds, and just wish the upload portion was the same. So, anyone have any thoughts on this.