So I recently built a computer specifically for gaming and I have been having some really slow internet speeds, I bought a new router and it did not change anything, so I thought it might be the internet speed was too slow, so i upgraded my internet service to 25Mbps. Now main computer and laptops are getting 20Mbps and phones are getting around 10-15Mbps, but my gaming computer is still getting 3-5Mbps, so I thought it might be the cable so I changed the cable to 2 other ones I had and no luck.
Then I thought it might be that the ethernet port is broken somehow so I went out and bought a usb to ethernet adapter and tried that and still no progress. I'm very lost here and by no means a computer expert so I thought I would ask around, any suggestions? Anything helps, and thanks in advance.