Error 5704.10.0

Open Server Error: 5704.10.0: Changed client character set 
setting to 'cp850'
Open Server Session Fatal Error: 16227.15.0: Unknown token TDS stream 
received by spid 5

This message can appear if a user, who succeeds in executing a local dump database, tries to dump to a remote Backup Server.

Check your default character set. If the default character sets for the remote Backup Server and Adaptive Server are different, change the Backup Server's default character set, restart the Backup Server, and rerun the dump.