SBS: Error Message: Modem Sharing Trap

• Microsoft BackOffice Small Business Server versions 4.0, 4.0a, 4.5

SYMPTOMS

During configuration of the Modem Sharing Service in Small Business Server you may encounter the error message;

Modem Sharing Trap
AT e:\ntprivate\netcom\server\cpl\csrvdata.cpp(400):
Status 8ccc0001

Modem Sharing Trap
AT e:\ntprivate\netcom\server\cpl\init.cpp(400):
Status 8ccc0001

CAUSE

The code for the Modem Sharing Service has a limitation in the number of characters that a configured serial comm port can be named. Some third party multi-port boards will name the ports with long descriptive names causing this behavior.

RESOLUTION

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys and Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).


Check in the documentation or with the vendor of the multi-port board and see if the ports can be installed with a custom name and install them with standared port names (ie: COM3, COM4, etc). If this is not an option the following procedure should correct the Modem Sharing Trap.

1. Go to Start/Settings Control Panel



2. Run the Services applet, click on Modem Sharing, Click Stop



3. Start Registry Editor (Start/Run/Regedt32.exe).



4. Navigate to the key HARDWARE\DEVICEMAP\SERIALCOMM.



5. Highlight the SERIALCOMM folder.



6. From the Edit pull down choose Save Key and back up this registry key in the event it must be restored.



7. Locate the port name values for the multi-port board under the following key in the registry:

      HARDWARE\DEVICEMAP\SERIALCOMM 




8. Double Click on the value to be edited, delete any characters except a description of COM# and click OK. For Example:
   dgapci4Line1Concentrator1Port1:REG_SZ:COM3-PORT1 Change to Serial0:REG_SZ:COM1
   
   Repeat this for all ports.



9. Quit Registry Editor.



10. In the Services Applet click on Start.



11. In Control Panel run the Modem Sharing applet to configure Modem sharing.

MORE INFORMATION

Additional query words: smallbiz

Keywords : kbui
Version : winnt:4.0,4.0a,4.5
Platform : winnt
Issue type : kbprb