You receive an authentication error indicating the user did not properly authenticate on the target computer. For example, you receive the error, "The user name or password is incorrect."
Check to ensure you can access the target computer's ADMIN$ and C$ from the PDQ console. For example, Start > Run > \\Target\ADMIN$ and \\Target\C$. The test should be performed while logged in as the Deploy User or Scan User or using those same credentials.
Possible Reasons and Fixes:
Other possible logon/password issues are covered in the following: