Not sure if this is the correct forum to ask, however, as the title states, my desktop will get around 120-140 megabits down, while every other device (about 5 total) will always get the 300 megabits service that i have from ATT. I am currently using ethernet, and have tried the same cable on 2 laptops, and will still get the same results and so I know it is not a cable or router issue. I have an ASUS B250F motherboard, i7-6700k and a rtx 2060 if that info is of any use. I will provide any other info if needed. i have tried about every basic troubleshooting step i can find online, as well as a few more in depth ones as well, so i have decided to come looking for assistance. thanks!