See if the following KB article helps:-
http://support.microsoft.com/kb/972496
Netflix uses port 80 and 443.
regards,
S.Sengupta[MS-MVP]
"Kevin Marsh" <> wrote in message
news:A553D04B-520D-43AC-8878-...
> I have watched video from my Netflix account with MC in the past, but now
> I get a blue box stating, " INTERNET CONNECTION There was a problem
> retrieving data. Verify your internet connection is working and try
> again." The connection is fine. I get almost 3 m/s download speed. This is
> with Vista Home Premium. It did not come with the Netflix, but it was
> added with updates sometime last year.
>
> I have a valid account and can watch through a browser window. I am using
> Embarq ( F Secure ) security package with a firewall and application
> control. Inbound and outbound connections are allowed on everything that
> looks like it might be involved with MC or Media Player. I suspected the
> firewall because last night I suddenly lost outbound POP access to my
> Gmail account from Windows Mail. I could receive but not send through
> Gmail. After manually opening port 465 ( preferred by Gmail smtp server )
> it works again. I am assuming an F Secure automatic update may have closed
> the port, because it worked fine earlier in the day. Could I have lost a
> port needed by Netflix in MC?
>
> I tried uninstalling the Netflix in WMC through the Programs in Control
> Panel. Then I opened MC and clicked the Netflix button and was prompted to
> download and reinstall the Netflix software as well as Silverlight. I
> still get the same error.
>
> Can you tell me what ports are needed by Netflix in WMC? Or, am I barking
> up the wrong tree here?
>
> Thanks for any ideas,
> Kevin
>
>
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> signature database 4737 (20100102) __________
>
> The message was checked by ESET Smart Security.
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__________ Information from ESET Smart Security, version of virus signature database 4737 (20100102) __________
The message was checked by ESET Smart Security.
http://www.eset.com