external harddrive slowing internet

[mnkypprs]

i bought a 1tb, USB,  external harddrive for backup. Ever since adding it, it seems my internet often crawls. I've done virus/spyware scans on whole system with nothing showing.  Anybody heard of these things slowing down internet like this for some reason?

[XDuelly21X]

I have only a 120GB ext. Drive, and I have never had any problems with it slowing the internet?? Never heard of this issue.

[patio]

If it is for backups try the web with the drive disconnected...see if there is a difference.
I've never heard this either...