Our three-PC network workgroup uses Internet Connection Sharing (ICS) to connect to the ISP using dial-up. A Windows 2000 PC is loaded with a PCI 56K bit/sec modem. When we select “on-demand dial” so the other PCs can dial out on it, a 15-character password overrides the correct saved password for the dial-up account, and no authentication occurs. It seems to be a local system account. How do I get the correct dial-up password to not change?
You say the ICS host fills in the wrong password when you choose “on-demand dial,” so the first thing to try is to set the password on the logon account that you use on the ICS host to match the dial-up account password, and then see what happens when you try to connect from a client.
Next, find out if your ICS host automatically logs on to some particular account at startup, and if that account has the same name and password as the dial-up account. Windows workgroup networking relies on shared account names and passwords among the workgroup computers. ICS relies on there being a network client active on the workgroup computers.
The Microsoft Knowledge Base advice for ICS problems seems to be to uninstall ICS and then re-install for a fresh start.
