Have a customer that every time they try to download large files (over 30 mb), theri internet line drops out. Same on server (SBS 2003) and workstations (XP pro).
They can download many smaler files (10-15 Mb) one after the other no problem.
And line are messured to good speed. (8 mb\s)
After line dorps out, it comes back after a minute or two,
Thoght about trying changing router (zywall 2) and modem that stands in bridge mode.
Any other ideas??