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Connection to Microsoft Exchange is unvailable. Outlook must be online or connected to complete this action

Posted on 2008-10-01
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Last Modified: 2012-05-05
Dear Experts,

I would like to request help on a matter that has been bothering me all morning. Despite quiet some research and work i am unable to find the problem and way to solve this.

We have Outlook 2007, and server 2007 on every computer in the network, and all works fine. But lately, i've noticed that some computers that we've been preparing for new comers can't connect to the exchange server. There is no particular reason as the settings and everyting are set by a default image and are the same everywhere.

The message that I receive when I open outlook is the following : The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.

I have tried litteraly everything i can think of, the network cable is plugged in, i've set and reset the IP, checked the configuration of the gateway, DNS ad DHCP server. I've flushed the DNS, i've removed the MCAFEE antivirus, i've turned off the windows firewall and also set the ''exceptions'' and ''advanced'' tab of the firewall settings all to off.

At some point i got it working, for no particular reason, i thought that changing the firewall settings did it, so i was happy, i reinstalled the antivirus, and removed the mailbox and restarted the whole process, but again, same problem, so i either did get it working simply by luck or really did something that solved it, but what i don't know because I have been repeating the same process for the past hour and now it's not working, i think it was just a ''one time luck.

I've tried also removing the profile, re adding, removing the PST files, repairing them or manualy adding the mail server address, checking the address of the server, pinging... everything i can possibly think of, reinstalling and uninstalling the virus + rebooting several times, at each step.

I've read microsoft's article on the subject, most do not apply or help, also read other forums... and they are not helping or applying to my problem.

any advice would be strongly appreciated

many thanks
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Question by:ike_it
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7 Comments
 

Author Comment

by:ike_it
ID: 22614068
In addition to all the information I have provided, I have now also tried removing the network adapter + reinstalling it, then also removing service pack 3 and rebooting. No results.
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Expert Comment

by:Ben_Ang
ID: 22614810
HI  Ike IT

How many Exchange CALS do you have?

Cheers

Ben
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Author Comment

by:ike_it
ID: 22615011
just checked with my manager he tells me we have enough... i didn't know about exchange cals
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Expert Comment

by:JMcCulloch
ID: 22615550
Ike, Hello.

You might try putting the pc on without the image. Just add it to the domain, pop Office on it and then try. This should tell you if its "image" related.

If it is fine, then you may want to create a new image and try it. If its not, what OS do you have on the PC?

Let me know how you get on.
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Expert Comment

by:Ben_Ang
ID: 22621447
Is your SOE Image already joined to the domain?
If yes, disconnect PC from domain, rename and then rejoin.
I concur with JMcCulloch reload from scratch for further testing.
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Accepted Solution

by:
ike_it earned 0 total points
ID: 22657498
hello,

joining, unjoining the domain didn't really solve anything.

The only thing that solved this problem was to un-install office completely, this didn't make much sense to me as it was one of the only things i hadn't tried, don't know what to conclude really... but it works...
thanks for the quick responses in any case
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Expert Comment

by:JMcCulloch
ID: 22657637
I would say its proof positive that your image is wrong for that box. I would suggest you rebuild the image from the working one and try it on the others with the problem. This would explain why the office has had the problem.

Good luck and glad to see you got it fixed. :)
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