Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. So, make sure that you follow these steps carefully. To secure, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To resolve this problem, use the following troubleshooting procedures:
Start the Registry Editor (regedt32.exe), and then confirm that the following registry key is present:
HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ RemoteAccess \ RouterManagers \ IP
If this registry key is present, verify that it contains the following three values:
Value name: DLLPath
Data Type: REG_EXPAND_SZ
Valuable data:% SystemRoot% \ System32 \ Iprtrmgr.dll
Value name: GlobalInfo
Data type: REG_BINARY
Value of data: different data between computers
Value name: ProtocolID
Data type: REG_DWORD
Valuable data: 0x21 (hexadecimal)
If the registry keys and values are described in step 1 exists, verify that Iprtrmgr.dll located in the specified path.
If the file exists and the path is correct, reinstall the modem:
Disable the service routing and remote access.
Use the device manager to uninstall the modem.
Restart the server and wait for the plug-and-play process to redetect the modem.
Service allows the routing and remote access.
If the problem is not resolved after you reinstall the modem, remove and reinstall the Transmission Control Protocol / Internet Protocol (TCP / IP).
Start the remote registry service if it does not work:
Click start, click run, type services.msc, and then click OK.
Locate the remote registry service in the right pane.
Right-click the service, and then click start.
For more information on how to remove TCP / IP from a Windows 2000-based domain controller, click the following article number to view the article in the Microsoft Knowledge Base:
299 451 How to: Remove and reinstall TCP / IP on Windows 2000 domain controllers