When you use Dial-Up Networking, on Windows 2000, to connect to your ISP, you receive:
Check networking protocol connections...
TCP/IP CP reported error 733: Your computer and the remote computer could not agree on PPP control protocols.
This error can be caused by having the Negotiate multi-link for single link connections option enabled.
To disable this option:
1. In Network and Dial-up Connections, right-click the connection that you use to connect to your ISP and press Properties.
2. Select the Networking tab.
3. Press the Settings button.
4. Clear the Negotiate multi-link for single link connections box.
5. Press OK and OK.