Invalid password "nsgslbautosync: unable to establish master SSH connection: master process exited"

After changing the RPC passwords on our Netscalers, GSLB synchronization fails. Reverting to the default passwords allows GSLB sync to function. A non-default password is desired. Errors in the ns.log: "nsgslbautosync: Error executing command on gslb site...Reason: Error: Invalid username or...