Outlook 2010 resource does not response (with exchange 2003)

Hi, I've created a resource user for a room in my Active Directory on exchange 2003. In Outlook 2010, I logged me with this resource user and set the parameters and autorisation on the options->Calendar->Resources.

Now I created a new meeting and I invited the resource into the "to.." field, but I dont receive any answer from the resource. It's was working two month ago... Why ?
magodeoz2Sys AdminAsked:
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Radhakrishnan RSenior Technical LeadCommented:

Once you set the meeting request/ calendar sharing etc, it will stored in this registry HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Outlook\Options\Calendar. There is a known issue with outlook 2010 with Invite Resource,  run this fix https://support.microsoft.com/en-us/kb/982774 and see it resolve the issue.

Good luck!
magodeoz2Sys AdminAuthor Commented:
Hello ! Thanks a lot for the answer. I already tried this =/.

The key is added on my PC and my terminal server where I connect with the ressource user to configure it. But no success :(

Do you have any idea ?
Radhakrishnan RSenior Technical LeadCommented:

Is "Cached Exchange mode" has a tick mark for this user? if so, untick this and check vice versa. Also, the user has got the correct permission to access the request?

Remove the old profile and re-configure with new profile and see it makes any difference?
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magodeoz2Sys AdminAuthor Commented:
Hello ! Here what I have tested:

to check the box of cached mode and tested it, uncheck it and test it...  But without success..

The permission on the calendar scheduler are set like this: "By default - owner"
magodeoz2Sys AdminAuthor Commented:
After doing some tests... Apparently when the ressource user is logged on and has Outlook opened it works...

I have to let all my ressource users logged on my terminal server ? Oo

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magodeoz2Sys AdminAuthor Commented:
I've tested myself.
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