The Cdm Redirector Has Timed Out A Request To
There are few possible reasons why this error log appeared in the Event Viewer:
Printer drivers on client’s computer: ICA client was verifying and checking appropriate printer drivers from the client during the log on process, when this process is taking longer than the default time out value, the error occurred.
During the Citrix logon process,
The Citrix server will send a request to the Citrix client to enumerate the client printers. Now at this point you may think that if you have "Connect to Clients default printer only" then only the default printer will be enumerated.
WRONG! Every printer that’s on the client or is referenced in the profile of the user logging on, will be checked to see if there is a driver installed for it. So, if there are 10 printers in profile, all 10 printers will be checked to see if there are drivers installed.
Now the best bit – if the drivers are not installed, the client will try to get the drivers from the print server.
While all this is going on, the Citrix server is waiting for the client to send the printer information back so it can auto create the printers. If this takes too long, which it inevitably will as the client is downloading the printer drivers. A timeout occurs which then results in the CDM redirector errors appearing in the event viewer.
Once the printer drivers are installed, you won’t see it the CDM errors anymore (that’s why it seems like it happens once) unless the user moves to a different PC (that doesn’t have printer drivers for the user’s network printers).
It’s a pretty poor of way of designing the print process by Citrix, especially if a user may have several printers referenced in their profile and they then move to a client which doesn’t have those printer drivers installed.Possible solutions:
(1) Install the required drivers on the terminal server
(2) Force to use Universal Driver(source)
Citrix’ official knowledge base article – CTX207308 suggests to increase request timeout value in registry.
HKEY_LOCAL_MACHINE\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
There are few possible reasons why this error log appeared in the Event Viewer:
Printer drivers on client’s computer: ICA client was verifying and checking appropriate printer drivers from the client during the log on process, when this process is taking longer than the default time out value, the error occurred.
During the Citrix logon process,
The Citrix server will send a request to the Citrix client to enumerate the client printers. Now at this point you may think that if you have "Connect to Clients default printer only" then only the default printer will be enumerated.
WRONG! Every printer that’s on the client or is referenced in the profile of the user logging on, will be checked to see if there is a driver installed for it. So, if there are 10 printers in profile, all 10 printers will be checked to see if there are drivers installed.
Now the best bit – if the drivers are not installed, the client will try to get the drivers from the print server.
While all this is going on, the Citrix server is waiting for the client to send the printer information back so it can auto create the printers. If this takes too long, which it inevitably will as the client is downloading the printer drivers. A timeout occurs which then results in the CDM redirector errors appearing in the event viewer.
Once the printer drivers are installed, you won’t see it the CDM errors anymore (that’s why it seems like it happens once) unless the user moves to a different PC (that doesn’t have printer drivers for the user’s network printers).
It’s a pretty poor of way of designing the print process by Citrix, especially if a user may have several printers referenced in their profile and they then move to a client which doesn’t have those printer drivers installed.Possible solutions:
(1) Install the required drivers on the terminal server
(2) Force to use Universal Driver(source)
Citrix’ official knowledge base article – CTX207308 suggests to increase request timeout value in registry.
HKEY_LOCAL_MACHINE\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
