A conflict exists between a default port used by CICS Transaction Gateway for one of its supported protocols and another port that is already in use.
One or more protocols fail to start successfully and the following message is generated:
CTG6525E Unable to start handler for the protocol:protocol, port:port, because:[RC]
A conflict might exist between the CICS Transaction Gateway default port and a port that is already in use.
Change the port number in the configuration file (ctg.ini). For more information, see Configuring a remote mode topology.