Dial Up Error 645

Error 645: Internal Authentication Error

This error is normally caused by corruption or missing components on the network layer.

What to watch for:

Make sure that all network components required for dial up service are installed. If not, add
them. Instructions on how to do so manually are listed below.

Remove any unnecessary clients and protocols on the network layer as these may interfere with the connection. (IPX/SPX, NetBEUI etc) unless the customer knows that they need them. Make sure VPN is not listed. Remove any extra protocols, clients (Microsoft Family Logon is fine if it's there) and services.

If customer is running Windows 95 or Windows 98, after fixing the network protocols and clients, you may need to reinstall Dial up Networking.

You may need a Windows CD for this procedure

Windows 95/98/ME

1. Click Start, Settings, Control Panel
2. Double-click Network
3. Make sure Dial-up Adaptor, Client for Microsoft Networks and TCP/IP exist. If not, add them. Make sure all TCP/IP settings are default.

(Click Add, select Client (or Adaptor etc.) and click Add. All three are found under 'Microsoft')

1. Make sure there are no other protocols (IPX/SPX, NetBEUI etc.) listed- unless the customer knows that they need them. Make sure VPN is not listed. Remove any extra protocols, clients (Microsoft Family Logon is fine if it's there) and services.
2. If you have made any changes, you will need to reboot.

Have the user run Connection Setup (http://help.3web.com/3webinternetaccess/3webMenu.jsp?page=dmscsdial )

Windows 2000

1. Click Start, Settings, Control Panel, and then Network and Dial-up Connections.
2. Right-click the 3web connection and select Properties.
3. On the General tab, verify that the correct modem is listed.
4. On the Networking tab, verify that Client for Microsoft Networks and TCP/IP exist and are checked.
5. Highlight TCP/IP, and select Properties. Verify that all TCP/IP settings are set to automatic configuration.
6. Run Connection Setup (may need to reboot during Connection Setup)

Windows XP

1. Click Start, Control Panel, Network and Internet Connections, and then Network Connections.
2. Right-click the 3web connection and select Properties.
3. Select the Networking tab. Verify that Client for Microsoft Networks is installed and checked, and that TCP/IP is also checked.
4. Highlight TCP/IP, and select Properties. Verify that all TCP/IP settings are set to automatic configuration.
5. Run Connection Setup (may need to reboot during Connection Setup)

Windows 95/98 Uninstall and reinstall Dial-Up Networking:

The user must have their Windows CD-ROM to complete this procedure.

1. Click Start.
2. Click Settings.
3. Click Control Panel.
4. Open Add/Remove Programs.
5. Click the Windows Setup tab.
6. Wait for the search to finish, then double-click Communications.
7. Find Dial-up Networking, and click to remove the checkmark beside it (if there is no checkmark, skip to step 14).
8. If a message box informs you that other components rely on Dial-Up Networking to be removed, allow them to be removed by clicking Yes.
9. Click OK, and then click Apply.
10. The prompt will ask you to restart. Click Yes. When you have rebooted, Control Panel will already be open.
11. Open Add/Remove Programs.
12. Click the Windows Setup tab.
13. Wait for the search to finish, then double-click Communications.
14. Put a Checkmark in beside Dial-Up Networking.
15. If a message box informs you that other components rely on Dial-Up Networking to be installed, allow them to be installed by clicking Yes.
16. Click OK, and then click Apply.
17. Close the Control Panel.

Have the user run Connection Setup (http://help.3web.com/3webinternetaccess/3webMenu.jsp?page=dmscsdial )