Note If the Parameters value does not exist, you must create it.
To configure a larger port range (for example, 50,000–54,999), create a new REG_SZ (String Value) entry that's named ReservedPorts. Make sure that you use the XXXX-YYYY format.
For example, assume that ports 50000–54999 are reserved for the IPNAT service and that another application has also reserved ports in this range. If one of the applications consumes these ports, and they are not available for the other application, a port conflict occurs, and this causes issues with the application.
To avoid other potential conflicts, make sure that the IPNAT-reserved ports don't conflict with the ReservedPorts registry entry that's used by TCP/IP. This value can be found in the following registry location:
Article ID: 3066025 - Last Review: 09 Jun 2015 - Revision: 1