Outlook 2007 prompts for password exchange 2010 Sp1

I have a client with 3 XP Pro machines that they upgraded from outlook 2003 to outlook 2007 by themself.  Now, everytime they open outlook it prompts for a user name and password.  I have researched this to death and tried all the various "solutions"  but none work.  My client is getting frustrated..as am i, so i need this taken care of.

Client Network:
============
Single 2008 R2 SP1 server with exchange 2010 SP1 and all updates for both applied.
All workstations are XP Pro SP3 and Outlook 2007 with all updates applied.

 I am not going to bother going into any of the security settings for anything..IIS, Exchange so on due to the fact that i have changed them all so many times trying to correct this with not resolution..and i would like someone to tell me what the proper settings should be.

Thank you,
KB
LVL 1
KBSolutionsIncAsked:
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KBSolutionsIncAuthor Commented:
I truely hope someone out there comes up with something "NEW" to this over asked and over "solved" issue.
0
setasoujiroCommented:
You should post a little more info:

How does he connect :is it rpc over http, just mapi?
Did you already delete the outlook account and reset it?
did you already delete the outlook PROFILE and reset it?

0
zippybungle2003Commented:
there a so many possibles for this, try this

http://www.techieshelp.com/outlook-prompts-for-credentials/

0
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Vishal VasuDirector & CTOCommented:
Is the authentication mechanisam i.e. Basic, NTLM, etc. matching on Exchange Server, IIS as well as their Outlook profile?
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KBSolutionsIncAuthor Commented:
SOVLED!!!!

I had to reset all of the following Virtual Directory in Exchange Console:

AUTODISCOVER
ECP
EWS
OWA

Doing that reset the authentication in IIS as follows:

AUTODISCOVER
Anonymous Authentication - Enabled
Basic Authentication - Enabled
Windows Authentication - Enabled
All others - Disabled

ECP
Anonymous Authentication - Enabled
Basic Authentication - Enabled
All others - Disabled
                        
EWS
Windows Authentication - Enabled
All others - Disabled

OWA
Basic Authentication - Enabled
All others - Disabled
0

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KBSolutionsIncAuthor Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for KBSolutionsInc's comment http:/Q_27378642.html#36934948

for the following reason:

This was the only comment that solved the issue.
0
Vishal VasuDirector & CTOCommented:
This was related to permissions afterall which was asked by me.
0
JustAModCommented:
vishalvasu,

While you did touch on permissions, I dont think your post fully went into the details needed to resolve the problem. I am going to Accept the KBSolutionsInc's full explanation of thier fix, with your comment http:#a36917060 as an assist.

Starting the Auto Close process now.

Thanks,

JustAMod
CS Moderator
0
KBSolutionsIncAuthor Commented:
vishalvasu:

Although the problem may have ultimately had something to do with permissions, the values that were set by the "rest" action were the SAME values that were set before the reset. Hence....as far as anyone could tell the permissions were in fact set correctly.

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