Error with Sharing Calenders Outlook 2010\Exchange 2010
We migrated from Windows XP\Server 2003 to Windows 7\Server 2008 this summer and have been having issue with calendar sharing in MS Outlook.
When we used to use Exchange 2003\ Outlook 2007 staff was able to share their personal calendars with one another. However since the new system it there appears to be permissions issue which is preventing them from doing this.
From Outlook users get the following message when they try to prepare sharing with another user:
"Error while preparing to send sharing message"
I had a quick read online and it mentioned default sharing policy which I checked and seems to enable sharing for our users. Several Forums also suggested to see if users could share via Outlook Web Access. The message work but then even after accepted they still could not access one another calendarís (It just came up blank).
Further reading has suggested to me that it could be something does with the Auto discover virtual directory service not running but I am unfamiliar with this.
Any ideas? I'm sure this may be a common issue when moving from exchange 2003 to 2010 but I can't seem to find an answer. Iím hoping itís something quite simple!
In case I didnít mention it this issue is affected all users.
Thanks in advance!