asked for login id, etc when getting into outlook

[gbl]

Two users in our office were prompted to provide their user name, domain and password when trying to access outlook this morning. We've migrated to Exchange 2000 and were already using Outlook 2000, and these prompts never appeared on any client computer before. The username was resolved in the properties of the Microoft Exchange service to verify that the user is correct. Yet we get this prompt and when I provide the information I get the message "Microsoft Exchange Error: The logon credentials you supplied were incorrect. Make sure your username and domain name are correct, then type your password again".
The only difference I can see is that if the user's name was "Tom Jones", he logs on as "Tom", but his receipeint name appears as "Tom Jones" when resolved on the properties page of the Microsoft Exchange server" service in Outlook/Mail.
Any suggestions?

 

[Xybertron]

The user can check name?

Mailbox rights has the user with rights? Is SELF account there? Which account has Associated External Account? Dan
Microsoft Exchange Support @ Microsoft

 

[ACraib]

I've seen this happen when the users password has expired. They've logged on fine but for some reason their password expires after they've logged in.

 

[fluid11]

Are the users joining a domain?

 

[1dannyd]

I've gotten this a couple of times when a user of one domain is accessing the exchange server in another domain.
Could be or no?
Worth checking anyway, just make double sure the logon domain is the same as where their accessing the exchange server from.

 

[johnmac1]

I have a similar problem on our test system, which trainers use to test course work etc.

They are now being denied access with the same error message as above. No changes to system have been made.

If I log in on their account, I am allowed access but dialogue box with "....wrong credentials...., please check and try again" appears after a minute or so and will not accept the details which got me access! If I cancel dialogue, box disappears and I can continue in mailbox.

Login, domain and password are correct for checking mailbox name in the profile.

If I create a new user I get the same problem.

I have checked all the areas outlined above but no luck. Any thoughts?

 

[steavis]

I have experienced this before as well, so here are 2 Possible Things to Check:

1. Make sure that under the properties of Exchange Server and then the Advanced tab, that Logon Network Security is set to NT Password Authentication. It could be a possibility that it is set to None. That would cause it to ask for username/passsword/domain.

2. Another thing is that if you are on Active Dir. since you are on E2k, you may need to see about the DNS entry that the person may or may not have on their network card settings...

 

[johnmac1]

Tried every option available under "Logon Network Security" (How come I can find no info. at all on this via Help?) but nothing worked.

DNS is picked up dynamically at network logon.

I feel the probelm is at the Exchange end, as Outlook can log into the live Exchange system with no problem, via another profile.

 

[Dee436]

Dont Know if you have solved your problem yet, I had the same thing with one client machine, I tried reinstalling,installing to a different machine but nothing worked.
I got round it by creating a new user with a mailbox, reinstalled the client machine and joined it to the domain with a new host name,first connection to exchange was with the new user account as this worked ok i then logged off and connected with the original account for the troubled user and all has been ok since

 

[Xybertron]

ACraib (MIS) - That is a kerberos ticket issue. Can happen for 10 hours by default if I remeber right. Dan
Microsoft Exchange Support @ Microsoft