Well if you have torrent programs running, that would impede on using the connection as it would take part or all of your bandwidth. Video conferencing needs both upload and download bandwidth. 1.5Mbps is not sufficent for video conferencing... especially if your upload bandwidth is minimal. Note that if either of your upload or download is maxed out, then your speeds will become erractic.
The only thing I can think of right now is to make sure nothing else in the background is running that uses the internet and try youtube
The only thing I can think of right now is to make sure nothing else in the background is running that uses the internet and try youtube