Based on some common scenarios Freewind Hosting engineers have come across with running Parallels Plesk Control Panel on our UK Windows Hosting architecture, we have put together a list of common issues along with resolution for each, below:

Issue
When a user browses the File Manager or Virtual Directory functions within Parallels Plesk they receive the error:
FileList::init() failed: ls_dir_wrapper() failed: Unable to logon user (DOMAIN\USER): (1326) Logon failure: unknown user name or bad password
Resolution
This issue occurs when the password of the domain's owner account is not synchronised with the record contained within the Parallels Plesk database. To resolve this issue you need to do the following:
  1. Logon to your server using Remote Desktop
  2. Get the domain user's password from the Parallels Plesk database by executing the following command (from command line prompt):
    "%plesk_bin%"\dbclient --direct-sql --sql="select su.login, a.password from accounts a, sys_users su where a.id=su.account_id and su.login='DOMAINUSER' "
    Where DOMAINUSER is the user of the domain.
  3. You now need to synchronise the domain owner's account to that of the Parallels Plesk database record. Execute the following command (from command line prompt):
    net user DOMAINUSER PASSWORD
    Where DOMAINUSER is the user of the domain and PASSWORD is the password returned from the query above.