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some client PC cannot connect to sbs exchange 2003

TinoW asked
Medium Priority
Last Modified: 2012-05-06
We have a standalone server installed with SBS 2003 over a year and everything working fine.
Last week I have set up the exchange and use POP3 connector to download the emails from our ISP and distribute to the associated member mailbox.
Then I need to configurate the Outlook 2007 on 4 client PC by using their own user login and connect to the exchange server.
I have no problem to finished two of the client PC, connect to the exchange server, and send and receive email as expected.
But the other 2 client PC both have the same problem that not able to connect to the exchange server. When I click on the E-mail (outlook 2007) icon, a dialog box pop up (didn't happened to the first two PC) said:
connecting to server.domain.local
User name:
OK CANCEL button

I try every user name and password includes administrator but still not accept.
I click cancel to close the dialog box, then a new Microsoft exchange dialog box pop up and said:
General (Tab)
Microsoft Exchange Server:
"Clara" (and a check name button on the right)
"Once the names have been checked and are underlined, click OK"
OK CANCEL button
(**Clara is the user of one of the first two PC beed setup sucessfully, not the local login user)

I never click OK because the user mailbox is not right, and I don't want to mess up Clara account (may be).
I click cancel to close the dialog box and a new one comes up again:
Microsoft Office Outlook (Title)
"Cannot open your default e-mail folders.The file C:\Documents and Settings\........\outlook.ost cannot be accessed. You must connect to Microsoft Exchange at least once before you can use your offline folder file."
OK button

When I click OK, the outlook closed.

I also try login to those two PC with my account (administrator right), but I got the same result.

Please help!!

P.S. All client PC are XP Pro w/ SP2
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Top Expert 2007

Before going any further, go into the properties of her Outlook profile and take out the check by "Exchange Cached Mode". Restart Outlook and try again.

These are the steps I would suggest -

1. Restart PC so that all user NTUSER.DAT files are not in use.
2. Login using LOCAL ADMINISTRATOR account.
3. Delete CLARA's from C:\Documents and Settings folder.
4. Once Deleted, logout and relogin as Clara and try all of the above.
5. If still doesn't work take the PC off the domain and re-join it to the domain.
6. Also make sure that the time zone and time on the PC match to that of that of the EXCHANGE SERVER.

Please update me so that I can help further


Actually, Clara and her PC is set up fine.

I am trying to do the same for Megan and Siobhan PC but getting the above problem, even I login to Megan and Siobhan PC either with their user name or my user name, the exchange keep ask for the user name and password when the outlook try to connect.

Should I still go to Clara PC and remove her cached mode? Because the problem is not on her PC.

To manav08:
1. I have restart the PC but still the same.
2 & 3. There is no Clara folder in the Documents and Settings because she not work on those two PC.
I'm going to do 5 & 6, but it may takes a bit time, will let you know when I finish.


Sorry I think we all misinterpreted the question.
OK so try what I said above (steps 1 to 6) by deleting the other 2 users profile and see how you  go. Also on a side note just thinking if you can verify whether you can login the other 2 users to OUTLOOK WEB ACCESS. Maybe their passwords have expired in Active Directory.

If Clara's PC is working fine do not worry about taking off CACHED EXCHANGE mode. Leave it turned ON


I will try no. 5 first, otherwise, I need to backup all their local files before I can remove their local user profiles.

The outlook web access is my another problem need to be fix, no one able to access to the server remotely yet (such as RWW, VPN & OWA etc). But let me finish this one first.


I have  took the two PC off the domain and re-join them back to the domain, but still the same problem.
I think it may something to do with the security setting either on those two client PC or on the server, the server and the internal network were set up by a IT company a year ago, I beleived that they have put heavy hand on the network securities, such as when I try to open the IE from the server, a dialog box "Open file - Security warning" pop up and I need to click the open button to confirm.
Unfortunately, that company is no longer in business so I didn't have any records of how they set them up.
However, there are something still didn't make sense to me:
1. I login to Megan PC with Megan user name and password, when the exchange ask for the user name and password and my user name is shown in the user name text box, of cause, the password text box is blank as request to enter the password.
2. After I cancel the user name and password dialog box, the Microsoft exchange dialog box always pop up and said:
General (Tab)
Microsoft Exchange Server:
"Clara" (like a default)
But I login as Megan and set up the outlook for Megan, it should nothing to do with Clara
And Siobhan PC is exactly the same.
3. If I use Clara user name and password to login Megan or Siobhan PC, the exchange didn't ask for user name and password and continues to the set up, but I didn't continue the set up because I don't want to set up Clara account and email on those two PC.

All users inside the network have MY DOCUMENTS folder redirection set up and offline files enabled.
All users also have roaming folder set up as well.

Are there any settings on the client PC or the server I should check?


Clara, Megan and Siobhan are set up as normal domain user, and administrator on their own PC.

It is very hard to troubleshoot the issue like this as I find hard to understand what you are saying above. I am sure it is a very very simple issue. Whereabouts do you live?? I was wondering if you could maybe get me remote access so I can help you further...

TINOW, I read the rules of experts-exchange and you are not allowed to release your email details or phone no. I suggest posting screenshots of the various errors you are getting


Hi manav08,
I have worked around the problem last night, Megan and Siobhan outlook and their email are setup and working all right now.
What I done is open the exchange system manager, under the servers - security, give full control to authenticated user, then, when I setup the outlook for Megan and Siobhan, the user name and password dialog box didn't come up again.
I don't think it is the right solution, but at least it works.
Thanks for your help anyway.
Can the users login via OWA?


No, I still trying, I always got "Internet Explorer cannot display the webpage" with OWA access.

When I connect the server using VPN network connection, I always got the following error:
Connection failed with error 800
Unable to establish the VPN connection because a tunnel could not be setup.  This might be because the VPN server cannot be reached or because security parameters for this connection are not configured correctly.
I did see the message "Verifing user name and password" then "Connecting to doamin".
I think I have all necessary ports open on the router and point them to the server, is there anything I can try?
how do you try to login via OWA? http://servername/exchange or https://.....?


I did try both http:// and https:// and got the same result.


I think I should close this post as the OWA is another issue, and I will do a new post for the OWA problem later.
Do you know how can I close this post?
Thanks for the help
question closed

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Hi TinoW,

You can close the question by clicking on ACCEPT SOLUTION or ACCEPT MULTIPLE SOLUTIONS. It is always best to select multiple solutions even if what the others posted was slightly helpful to you. This will keep them motivated.
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