Redirected Printers Missing from Terminal Server

A situation arose where a needed printer wasn't appearing and there was inconsistency when testing multiple users.

Every printer but the one needed was being redirected.

Cause

From Event Viewer (on the terminal server):

The number of printers per session limit was reached. The following print queue was not created ...

Event ID 1124

Fix

Add the registry key MaxPrintersPerSession (DWORD (32-bit) to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services

Default is 20

After setting the MaxPrintersPerSession have the user log out and log back in (simply disconnecting will not build a new session with the updated key activated)