I don't know what software your using but stupid (but very cheep) ISP only allows me 1 hour sessions and 2 hours nights and weekends and then drops carrier. I then have to re-connect. I can re-connect as ofter as I want. Many times while downloading large files I encounter dropped carrier. I just re-connect and the download starts right where I left off. I don't have to start all over again. Do you?