Outlook 2007 just strated repeatedly prompting for username and psw - worked before with no problem

Outlook 2007 which had been working on client computer with exchange 2000 without a problem, just started prompting for a username and password repeatedly.  I rebooted both the server and client computer, but same problem.

Other 2007 users can log onto the server wtih no problem.

Help please!!! (thanks)
Randy_RAsked:
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smangognaCommented:
Try to remove the PC from domain, restart and rejoin to the domain

Sergio
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waynej1979Commented:
I would try to remove the outlook profile first then recreate it.
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snurkerCommented:
Go to Account settings>other settings (or advanced settings)>connections tab>Exchange proxy settings. Under here, you should see 2 boxes on fast networks and on slow networks... check both. This has resolved this issue for me on a number of systems.
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Randy_RAuthor Commented:
Additional information:

I unchecked "Cashed ExchangE" and "encryption" and now it says there is no connection available to the exchange server.  Again I can reach the machine via Radmin (a remote control progrm), other users can login, and the server has internet access through explorer.

Does this point anyone in a different direction?
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waynej1979Commented:
this could well be a corrupt outlook profile. I would start there.
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Randy_RAuthor Commented:
My only concern is that when I originally (a couple of years ago) tried to create a mail profile on outlook 2007 with exchange 2000, I couldn't get past the "checknames" portion of profile creation.  I had to uninstall outlook 2007, install outlook 2003, create the profile, uninstall outlook 2003 and then reinstall outlook 2007.  I'd rather not do all that if I don't have to, obviously!!

Anything else to try first Waynej1979?
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snurkerCommented:
Is this pc on the domain?  If so,  it sounds like you have bigger authentication issues. Have you seen anything the the event log on the server?
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waynej1979Commented:
Don't delete the profile just try to create a new one. That way you won't disturb the current connection. Make sure you select to "prompt" for profile selection as well.
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Randy_RAuthor Commented:
Nothing in the event log on the server.  I don't have PCs in the domain, just users registered.

Given the other 3 PCs, which are setup identically and work fine, I"m sure its something on this machine (as opposed to the server).

I can't create a new profile, as I get the same message "exchange if unavailable" that I always get when I try and create a profile in Outlook 2007.

Perhaps I should reinstall outlook 2003 and recreate the profile? If so, do I need to uninstall outlook 2007, or can they exist side by side?

Any other ideas?

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snurkerCommented:
No. Did you try what I suggested?
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waynej1979Commented:
only other thing i have known is the credential manager in xp.
Open User Accounts in Control Panel.
On the Advanced tab, in Passwords and .NET Passports, click Manage Passwords.

Find the entry for your exchange server and remove any stored passwords. Next time you open outlook u will be prompted again enter credentials and close outlook again and reopen, see if this clears it.

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waynej1979Commented:
if above doesnt exist try the following to access the credentials manager

If you have a computer administrator account

1.
 Open User Accounts in Control Panel.
 
2.
 Click your account name.
 
3.
 Under Related Tasks located on the left side of the window, click Manage my network passwords.

You can now add a user name and password that you use to access a resource, or you can edit or remove an existing entry.
 

If you have a limited account

1.
 Open User Accounts in Control Panel.
 
2.
 Under Related Tasks located on the left side of the window, click Manage my network passwords.

You can now add a user name and password that you use to access a resource, or you can edit or remove an existing entry
 
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Randy_RAuthor Commented:
I found the credential manage (in Windows 7), deleted everything, but no difference.

When I try and log into Outlook, I get "Exchange Server is unavailable...Retry, cancel, etc."  When I hit retry it goes into outlook (using my OST) and the status is "offline."

Somehow it's not seeing the server.  I don't get a window asking me for outlook login credentials.
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Randy_RAuthor Commented:
I can ping the server, and nslookup fine it as well (using the full domain name).
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waynej1979Commented:
if you do \\exchangeservername what happens
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Randy_RAuthor Commented:
Sorry Wayne, where am I typing this?
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snurkerCommented:
I am not sure why you did this, unchecked "Cashed ExchangE" and "encryption",but could you revert back and see if you have connection again?

He is having you check in Windows explorer and see if you can see the server shares (if there are any). If there is an authentication issue, it should show here as well.

BTW, I assumed that you have rebooted the PC. This is correct right?
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snurkerCommented:
Any password changes recently?
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waynej1979Commented:
you should do this from start run then enter the \\servername to see if the sevrer shares appear or if you are prompted for credentials again
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Randy_RAuthor Commented:
Rebooted many, many times Snurker.

I unchecked them because I found another post that suggest I do that when credentials keep on failing, which they were.  Once I did that, I don't even get the credentials prompt.  I just get that the server is unavailable.

What I was unclear on is where in "windows explorer" I should type "\\exhcangeservername?"
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Randy_RAuthor Commented:
I get a message box that says "windows cannot access \\servername"  "Diagnose, etc."  I get the same for "\\servername"
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snurkerCommented:
address bar. Or as he mentioned, start>run. Same thing.

Revert those settings. The only item that you may want to turn off is cacheing, but please try my changes from the first post. It will not mess up your system.
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Randy_RAuthor Commented:
Those settings are under the connect using http setting, which is unchecked in my installation.
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snurkerCommented:
Check them. I am looking at 2010.
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snurkerCommented:
Actually you may not be using HTTP over RPC or outlook anywhere. Are teh settings filled in there or not? Meaning does it have the exchange server address in there?

BTW, when did this start happening? Worst case scenario, you could try a system restore.
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Randy_RAuthor Commented:
Do I need to give it a proxy server?
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Randy_RAuthor Commented:
And keep connect through http checked?
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Randy_RAuthor Commented:
This is what that section looks like now snurker (see screen image attached), and the results are the same.  I checked "always prompt for credentials" so it now prompts me, but then it says connection to server is unavailable and open in "offline" mode.

 Screen-image.doc
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Randy_RAuthor Commented:
I uninstalled outlook 2007 and reinstalled outlook 2003.  I try to create a profile in control panels -> mail.  I cannot get past checknames.  It keeps looping back to ask me for my password.

I can access the exchange account on another computer computer without a problem.

HELP PLEASE!!!
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Randy_RAuthor Commented:
I think I am going to open this up as a separate thread as it differs from the original problem (although they are undoubtably related).
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snurkerCommented:
Can you do a system restore from when this was working?
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Randy_RAuthor Commented:
Great idea Snurker!! Let me try that.  I have a image from earlier this morning!
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Randy_RAuthor Commented:
Didn't technically "solve" the problem, but was simple and elegant!
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snurkerCommented:
You are right,  but sometimes we can do more damage trying to chase a rabbit when this can get the same results.
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Randy_RAuthor Commented:
I agree.  Thanks again.
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