Originally Posted by Malcolm Wade

Problems with Dial-up connection using Fujitsu Siemens Amilo Pro V2040, Motorola SM56 modem on NTL Cable connection
Set up ISP with Connection Wizard.
Connects the first time
Try again dials, checks username and password get Windows Error 721
Tried several different ISP’s same problem.
Connect to a BT phone line all OK
Fujitsu and ISP support have not been able to throw any light on the problem