TDP for SQL Always On v6.4 setup

[Castaway]

I have a Windows 2012 SQL Always on cluster..TSM Server is v6.3.0.1 and TDP is v6.4 and client is v6.4.1.0.
I have NodeA and NodeB and Always On cluster name NodeClu.

I have proxy Target of NodeA and Agent of NodeA_SQL(TDP Agent) and NodeClu_SQL
then
proxy Target of NodeB with Agent NodeB_SQL (TDP Agent) and NodeClu_SQL
then
proxy Target of NodeClu with agent NodeClu_SQL


dsm.opt looks like this:
NODename NodeA_SQL
PASSWORDAccess generate
TCPServeraddress tsmsrvr.my.tcp.com
TCPPort 1500
HTTPport 1581

tdpsql.cfg file contents:
*LOCALDSMAgentnode NodeA
BACKUPMETHod legacy
ALWAYSONNode NodeClu
LASTPRUNEDate 10/21/2013 11:21:00


but this error is returned:
ANS1353E (RC53) Session rejected: Unknown or incorrect user ID entered

Completed

What have I missed?