Check that link Juan Carlos, after script setup go to step on solman_setup to asign you diagnostic agent on the remote system.
http://scn.sap.com/thread/3340409
# Update server name on smd
smdsetup changeservername servername:"servername"
# Connect to solution manager
smdsetup managingconf hostname:"servername" port:"5xxxx" user:"SMD_USER" pwd:"xxxxxxx"
# Connect to solution manager trough port or P4
smdsetup managingconf hostname:"servername" port:"xxxxx" user:"SOLMAN_ADMIN" pwd:"xxxx"
# Connection trought saprouter
smdsetup addsaprouter route:"/H/x.x.x.x/S/3299/H/solman.domain.com/S/3299"
# Registration of agent on sld
smdsetup sldconf hostname:"servername" port:"5xxxx" user:"j2ee_admin" pwd:"xxxx"
just done, restart DAA and check log