Technology Notebook

CDM Redirector Timeout Event ID 70 in MetaFrame 1.8 :: Tokeshi.com :: Citrix Support :: Thin Client Support :: Terminal Server Help

In the Events Viewer, one might find a varied number of Event ID 70 in Source: CDM Redirector. This occurs when the CDM Redirector timed out on a request to access a client device.

This can happen when an application is attempting to access a client device during a disconnect. Check Citrix Server Administration when you see this event appear. The best way to determine what client device is causing this issue is to turn off client device mapping (client drive, client COM ports, client printers). Enable them one at a time and monitor the client's logon process.

If you find that you are receiving these timeouts due to network latency, you can modify the timeout values in the registry key shown below:

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. Make sure you back up the registry before you edit it. If you are running Windows NT, be sure to update your Emergency Repair Disk (ERD).

The registry key is:

HKLM\SYSTEM\CurrentControlSet\Services\Cdm\Parameters

Increase the settings for the following:
RequestTimeout: Default is 60 (in seconds)
DirCacheTimeout Default is 30 seconds
CacheTimeout is 60 seconds