Avast 4.8 Professional w/WinXP sp2

I’m having problems getting the automatic update to run when going through a Proxy Server. I’ve enabled the Avast connection Proxy setting and it tested correctly (it says so).
The Proxy Server requires no authentication.

I can manually do the update from the workstation w/o any problem.

BTW - I’ve tested with the Windows Firewall turned off and still have the same problem.

Have you check the avast setting?

Check the picture below

If the manual update work, the automatic will be the same…
Why do you think the automatic does not work?
Please, post the last 200-250 lines of avast log: C:\Program Files\Alwil Software\Avast4\DATA\log\Setup.log