Hi Birdy.

Does LW only lose connection, or do you also lose internet connection?
I lose internet connection.

This happens when you're downloading files...
Yeah, only when dowloading files

Try disabling ultrapeer capabilities (tools > options > speed). Also try disabling all iTunes options. Limit your simultaneous downloads to just 1 or 2. Reduce your download & upload bandwidth a little.
Ok will try all these options
many thanks
kalibra