Dongle(s) Causing Rubber Banding

About three months ago my friend and I had identical gaming computers built in-store. His has not had any issues, and mine was fine within the first week of gaming, however all of a sudden the games started to rubber band. There were no drops in FPS, but my internet became beyond sluggish. Note: I thought maybe something was wrong with the dongle I was using to connect, so I bought a new one (different brand) and the same issue occurred. The router being in another room is not the problem, as I set it up right next to the PC and nothing changed. Now, if I directly connect, this does solve the issue, however, direct connect is not an option for where my room is located. I have updated all drivers, reinstalled drivers … and still it is still giving me a headache. I have tried using every available USB port for the wireless network adapter(s) (which were not cheap and are made for top gaming experiences), so I'm at a loss now. Does anyone have any idea what might be wrong? Again, my friend had an identical computer built on the same day by the same guy in-store, and he is not experiencing any rubber banding affects. Thanks for any insight!

 

Yes he does.