*Another* weird DUN issue in XP Pro

[CodeDragon]

Okay, I seem to be getting too many DUN issues in XP pro recently, but here's the latest one:

During FTP uploads (not downloads so far as I've noticed), the DUN connection will suddenly stop receiving packets. The time at which this happens varies, but the following should be noted:

• When monitoring n/w activity using Task Manager, the network utilisation for the connection drops off suddenly from Xbps to 0
• This happens regardless of the DUN connection, and regardless of the ISP being connected to
• Once this has happened, no other traffic (FTP, PING, tracert or HTTP) will pass through the DUN connection
• This happens regardless of the FTP client used. The standard console ftp client that ships with windows also fails
• Windows will eventually shut down the offending DUN connection and attempt to redial, which is fine if your server supports resume... But mine doesn't
• I can't tell if this is time or filesize specific, but it only seems to occur with files > 1MB in size

Any suggestions peeps?

CD

[Edited for speling]