Should you encounter an error similar to the following on the Responder server, ensure that the login user for the Responder service has been added to the Performance Monitor Users group. This error will occur when a domain user is used to run the Responder services and that user has not been added to the Performance Monitor Users group.

System.TypeInitializationException: The type initializer for 'Miner.Responder.Processors.NetworkLockingCounters' threw an exception. ---> 
System.UnauthorizedAccessException: Access to the registry key 'Global' is denied.