Event ID 1124 — Remote Desktop Services Printer Redirection
Applies To: Windows Server 2008 R2
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Remote Desktop Services provides printer redirection, which routes printing jobs from a server to a printer that is attached to a client computer or to a shared printer that is available to the client computer. When a user establishes a remote session with an RD Session Host server, the redirected printer will be available to applications running in the remote session.
By default, an RD Session Host server that is running Windows Server 2008 or Windows Server 2008 R2 first tries to use the Remote Desktop Services Easy Print driver. If the client computer does not support this driver, the RD Session Host server looks for a matching printer driver installed on the RD Session Host server. You can either install a matching printer driver on the RD Session Host server, or you can create a custom printer mapping file.
Event Details
| Product: | Windows Operating System |
| ID: | 1124 |
| Source: | Microsoft-Windows-TerminalServices-Printers |
| Version: | 6.1 |
| Symbolic Name: | EVENT_NOTIFY_SPOOLER_MAX_PRINTERS_REACHED |
| Message: | The number of printers per session limit was reached. The following print queue was not created: Printer = %1 Port = %2 |
Resolve
Modify the MaxPrintersPerSession registry entry
To resolve this issue, create or modify the MaxPrintersPerSession registry entry to ensure that the maximum number of printers per session limit is not reached. By default, the maximum number of printers per session limit is 20.
To perform this procedure on the RD Session Host server, you must have membership in the local Administrators group, or you must have been delegated the appropriate authority.
To change the registry entry:
Caution: Incorrectly editing the registry might severely damage your system. Before making changes to the registry, you should back up any valued data.
- On the RD Session Host server, open Registry Editor. To open Registry Editor, click Start, click Run, type regedit, and then click OK.
- If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Yes.
- Locate the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services registry subkey.
- Right-click Terminal Services, point to New, and then click DWORD (32-bit) Value.
- Type MaxPrintersPerSession as the entry name, and then press ENTER.
- Right-click MaxPrintersPerSession, and then click Modify.
- In the Value data box, type the maximum number of printers that you want to allow per session, and then click OK.
- Close Registry Editor.
For the settings to take effect, do either of the following:
- Have the user log off from the session, and then start a new session.
- Restart the Remote Desktop Services UserMode Port Redirector service on the RD Session Host server.
Use the following procedure to restart the Remote Desktop Services UserMode Port Redirector service on the RD Session Host server.
To perform this procedure on the RD Session Host server, you must have membership in the local Administrators group, or you must have been delegated the appropriate authority.
To restart the service:
- On the RD Session Host server, open the Services snap-in. To open the Services snap-in, click Start, point to Administrative Tools, and then click Services.
- If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Yes.
- In the Services pane, right-click Remote Desktop Services UserMode Port Redirector, and then click Restart.
- Confirm that the Status column for the Remote Desktop Services UserMode Port Redirector service displays Started.
Verify
To verify that printer redirection is working properly, establish a remote session with the RD Session Host server and check that the redirected printer is available and is functioning as expected.