On 12/1/05, Raymond Norton <admin at lctn.org> wrote:
> We are experiencing a serious network slowdown at a school for about an hour
> every day. They are all on Remote Desktop, so in theory, there is not much
> bandwidth being used. I have used Ntop to try an diagnose things, and it
> shows there is very little network activity, far from bottlenecking the LAN.
> Is there a better tool for diagnosing this type of network problem?

Ntop gives you a good high-level view of what's going on, but for a
more detailed look at things, nothing beats tcpdump and/or ethereal. 
There's a windows port of ethereal, which I use on a daily basis. 
It's quite nice.