Question : What tool can I use to monitor network traffic and drop offs

I run a offsite backup at night and the internet speed seems to be dropping out and even during the day for users. I need a tool that can monitor there Internet traffic or monitor somthing that can tell me the quaility of there Internet speed.

Answer : What tool can I use to monitor network traffic and drop offs

You could give wireshark a go.

http://www.wireshark.org/

WIreshark is a nework protocol analyser so you can monitor traffic and see if someone is broadcasting or downloading. Plus it is free.