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Office 365 - Outlook 2007 always prompting for credentials

We setup Microsoft Office 365 on several computers using Outlook 2007. We are experiencing issues where every time Outlook is opened a password prompt is popping up. There is no check box to check off remember password. I've scoured through Google and threw up my hands after none of the options worked for us. Any ideas?

Manpreet SIngh Khatra

Is it happening to all users or just few ?
Is Outlook upgraded to the Most recent SP ?
Have you check with Office365 guys if this is a compatible version to work with ?
Does the prompt comes multiple times a day or once or every time you log into the machine ?

- Rancy

OBESEJESUS

ASKER

Multiple times per day, all users, SP2 on Outlook 2007. It is indeed compatible.

ASKER CERTIFIED SOLUTION

justinoleary911

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OBESEJESUS

ASKER

@justin,

I just went through the process of downloading the sign in agent and will keep this question open in case this does not work.

I also went through and made sure the DNS entries are correct, they are.

I'll keep this open for at least 2-3 more days. Thanks!

OBESEJESUS

ASKER

@justinoleary911

What if the sign in download agent isn't loading on a Windows 7 64-bit Home Premium OS?

I click on SET UP and it goes through this prompt saying checking settings and then does nothing. I had this happen on one of the other PCs but eventually it went through and downloaded the sign in agent which alleviated the problem on that single PC.

justinoleary911

thats an individual PC issue, its working on the other ones right? So this fixed the issue, correct?

OBESEJESUS

ASKER

Yes pretty much. I'll narrow it down on the other one. Thanks. Points will be rewarded later this am.

Denise Minnich

This is an ongoing issue. Continuing on with Outlook 2010. From BPOS to 365.
Microsoft is aware of it but has no solution. They all seem to not know what is going on but they do!
All user's using Outlook get random credential windows poping up randomly.
Look at these URL's for more information. I have checked all these recommendations and there is no solution so far. I think it is Micosoft moving users' to different servers constantly.

http://blog.quitecloudy.com/2012/06/troubleshooting-office-365-multiple.html

http://community.office365.com/en-us/forums/172/t/15620.aspx

http://www.brucebnews.com/2012/01/persistent-outlook-password-prompts-from-office-365/