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Outlook 2010 / Sharepoint authenthication issue

Posted By:      Posted Date: August 26, 2010    Points: 0   Category :SharePoint

Hi all,

I'm using Outlook 2010 on Windows 7 64bit.

My company uses a hosted Sharepoint server (I guess it's Sharepoint 2010). There's a team calendar, which I would like to connect to my Outlook 2010. Linking it to Outlook works fine until it tries to update the calendar with the Sharepoint server. I shows the following error:

Error (0x80070005) when running the task "SharePoint": "You are not authorized to view the SharePoint list (team calendar). Contact the administrator of SharePoint site. HTTP 401."

So this tells me, I'm not authorized to connect - which is quite clear because Outlook never asked my for any username or password.

Funny thing is when I try to add an internet calendar (Right mouse click on calendars, Add calendar, Internet calendar) and use the url of the sharepoint list, it asks me for username and password, but then fails to add the calendar, as it isn't a webcal (which is OK).

BUT: As Outlook at this moment has the username and password, the exisiting Sharepoint calendar synchronizes correctly. This works until Outlook is being restarted.

Does anyone have an idea why I'm not asked for any authentication? Maybe there's some setting I haven't found yet? It works with trying to add the webcal any time when I start Outlook, but t

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