So there are three computers connected to the internet by cable. Mine is the only one that started going slowly. It used to download at 90 mbps (all the other pcs still download at this speed) but it has gone all the way down to 0.050 mbps. I can't figure out what is wrong. i don't think it's a virus as a i have scanned several times to find no viruses. i've also used cc cleaner and a disk defragment. ive noticed other people who have had similar problems have sometimes had the same motherboard as me which is an ASRock AMD motherboard. i'm also wondering whether it is simply a cable or whether the modem needs to be reset. thanks for any and all replies