WNR2000v5 Adding an Application for QoS "Port conflicts with another rule."

[bnich11]

So I've been trying to understand and update the QoS on the WNR2000v5 router. 

More speficially, I want to specify games that I will be running to operate at the highest priority.  The available applications do not match what I am looking for, so I need to find a way to add a new one.  For example, if I want to add League of Legends in the highest priority section, I fill in the required fields under the application "Other."  I fill in the requirements (QoS Policy for: League of Legends | Priority: Highest | Connection Type : UDP | Starting Port: 5000 and Ending Port: 5500).

When I try to add this specifc application to the list, it errors me with the status "Port conflicts with another rule"

I removed all other rules from the highest category box and can't seem to get it to work.  Any help would be greeatly appreciated.

Thanks

[TheEther]

Perhaps there is a rule at a lower priority that conflicts with those ports.

[bnich11]

Is there an easy way to check each application for a port interference? 

[TheEther]

Not that I'm aware of.