Lost connection to updater

When I try to apply this most recent patch 4.1 ---> 4.1A the download for it completes but whenever I try and install it via the launcher I get an error message saying Lost connection to updater and the launcher closes.

Any help with this problem would be appreciated.

Bump

This is normally some security software kicking in, could try disabling your protection for the time you download the updates.

 
FAIL (the browser should render some flash content, not this).

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