A disabled Service Broker receiver needs diagnosis before recovery. Read queue flags alongside application evidence, distinguish state from cause and check receiving, enqueueing, activation and poison-message handling separately.
Change Service Broker Port: Drop and Recreate the Endpoint
Service Broker hit error 9692 because another application used its port. To change Service Broker port, drop the endpoint and create it again on a new port. Both scripts are here.
SQL Server – Fix – Error : 9692 The _MSG protocol transport cannot listen on port because it is in use by another process.
Error 9692 says the Service Broker transport cannot listen on port because another process uses it. Find that program with netstat, or move the port.
SQL SERVER – Introduction to Service Broker
Service Broker supports transactional asynchronous messaging within SQL Server. I separate queued work from the application that processes it.