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Sophos Anti-Virus for Windows: Sophos AutoUpdate fails with error code 80040f09

Sophos AutoUpdate fails when downloading. The following error messages and code are found in the alc.log.

In some circumstances, a further error message is present:

These error messages are seen when incorrect credentials are used.

What to do

Check the username and password used by the affected computer when downloading. These will usually be your EM Library credentials.

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