Even though Beremote is running on 2 of my XP system the backup exec will not connect to or backup the 2 workstation that hte user names had changed! I have made sure it is trying to login with the new user name and password but I still cannot connect to the XP workstations to backup any files from these 2 computers!
Just a thought here...... If I understand you correctly,a given WinXP user name password was changed. If I recall correctly and assuming the user account the password was changed for is the same user account used by BE to access the remote agent, then shouldn't the remote agent user account password also be changed to match?
You might check the bkupinst.log (in the Windows root directory) for installation errors. You might also want to review the command line (silent) installation section of the BE10d Admin Guide (http://www.symantec.com/business/support/index?page=content&id=DOC2353), particularly page 794. Also, check your command syntax.