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Sophos Anti-Virus for Windows: error 0000006b and error 1909 - Could not add a connection to server

Issue
Sophos Anti-Virus reports the following error

You may also see

When you check the ALC.log on the client computer. If you see the message,

Could not add a connection to server - Windows 1909 error 1909 : The referenced account is currently locked out and may not be logged on to.

This confirms that the account has been locked out

Sophos product and version
Sophos Anti-Virus for Windows 2000/XP/2003 6.5.7

Operating System
Windows XP Professional SP2
Windows 2000 Server
Windows 2003 Server

Technical Information
You can see this issue with any directory service, including Active Directory.
The root cause is that the account used in the update policy is locked out.

What to do

On the server, do one of the following.

  1. Click Start, Administrative Tools, Active Directory Users and Computers,
  2. Expand 'Users', right-click the account used under the Sophos updating policy, and select 'Properties'.
  3. Deselect the 'Account is locked Out' tab, click Apply, then OK.
  1. Click Start, Administrative Tools, Computer Management,
  2. Select System Tools, Local Users and Groups, Users,
  3. Right-click the account used under the Sophos updating policy, and select 'Properties' tab
  4. Deselect the 'Account is locked Out' tab, click Apply, then OK.

If you need more information or guidance, then please contact technical support.