Cannot connect with ISP, ping returns error 10091 (302861)

RESOLUTION

To resolve this issue, remove and then reinstall your networking components. To do this, follow these steps.

Note You must have your Microsoft Windows CD as well as driver disks for the dial-up adapter (if present) and the network adapter (if present) to complete these steps.

Step 1: Remove Networking Components and Dial-up Networking

For additional information about removing Dial-up Networking and Network components, click the following article number to view the article in the Microsoft Knowledge Base:

Step 2: Remove Network Registry Keys

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

1. On the taskbar, click Start, and then click Run.
2. In the Open box, type Scanregw, and then click OK.
   
   The Windows Registry Checker starts. A message similar to the following appears:

   No errors found.
   
   The system registry has been backed up already today.
   Would you like to back it up again?

3. Click Yes. You receive a message stating that backup is complete. Click OK.
   
   For additional information about how to reinstall TCP/IP on a Windows Millennium Edition computer, click the following article number to view the article in the Microsoft Knowledge Base:

   314465 Troubleshooting Windows: Internet Browsing (Part 3 of 4)

   
   
   To remove and reinstall dial-up networking in Windows Millennium Edition, follow these steps:
   1. Remove dial-up networking. To do this:
      1. Click Start , point to Settings , click Control Panel, and then double-click Add/Remove Programs.
      2. Click the Windows Setup tab.
      3. Click Communications, and then click Details.
      4. Click to clear the Dial-Up Networking check box.
      5. When you receive a "Do you want to remove Dial-Up Networking and all components that require it?" message, click Yes.
      6. Click OK two times, and then when you receive a "Do you want to restart your computer now?" message, click Yes.
   2. Reinstall dial-up networking. To do this:
      1. Click Start , point to Settings , click Control Panel, and then double-click Add/Remove Programs.
      2. Click the Windows Setup tab.
      3. Click Communications, and then click Details.
      4. Click OK two times, and then when you receive a "Do you want to restart your computer now?" message, click Yes.
4. On the taskbar, click Start, and then click Run.
5. In the Open box, type Regedit, and then click OK.
6. In Registry Editor, expand the following subkey:

   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock

7. Right-click Winsock, and then click Delete on the shortcut menu that appears.
   
   The following message appears:

   Are you sure you want to delete this key?

8. Click Yes.
9. Follow steps 6 through 8 to remove the following registry subkeys:

   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Winsock2
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\RemoteAccess\Authentication\SMM_Files
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\AFVXD
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\DHCP
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\MSTCP
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\Winsock
   HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\Winsock2

10. Quit Registry Editor.
11. Restart the computer.

Step 3: Reinstall Networking Components and Dial-up Networking

For additional information about reinstalling Dial-up Networking and Network components, click the following article number to view the article in the Microsoft Knowledge Base: