Prompts for Exchange password every morning

Question

Prompts for Exchange password every morning

We recently migrated all of our users over to Exchange 2010. After the switch, some of our iPhone users are receiving a prompt each morning to enter their Exchange password. If the user clicks "OK" or "Cancel" the message goes away and their mail works fine the rest of the day. That is, until the next morning when the prompt appears again. I don't know the exact time that this happens, but each user just says when they wake and unlock their phone, the prompt is on the screen. I've been working with MS Exchange support for a month now with no luck. It's such a hard thing to troubleshoot when it only happens once a day and I cannot force the error to happen until the next morning.

This is not happening to all of our iPhone users, just some. My iPhone has been fine from day one. MS Support can't seem to find anything different about my account (or any of the working accounts) compared to the accounts that are getting the prompts.

Has anyone seen this before? Or know how to fix? I've found a couple "fixes" online in some forums but none of them have worked for us.

iPhone 4 + 3GS, iOS 4

Posted on Feb 17, 2011 7:58 AM

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Answer 1

crazymfr

Level 1

0 points

Mar 4, 2011 7:00 PM in response to deronsizemore

I have the exact same issue on my iPhone and iPad. Our company just migrated to exchange 2007 in November. Each morning I get the promptmon both devices after unlock. I thought this was due to our company lock out from 12am - 6am for backups, but hearing you have the issue has me thinking it's a software bug.

I also am having isssues with the phone downloading messages. It just keeps saying "connecting" but takes in some cases 30-60 minutes. This is even with 5 cell bars and full n band wifi. I also am running MobileMe and gmail on the phone, but only MobileMe and exchange are set form push.

Please help if you can. Thank you.

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Answer 2

Mar 7, 2011 8:18 AM in response to crazymfr

I'm sorry that I'm not going to be much help. I'm still searching for answers myself. Although I can tell you that this seems to be some sort of bug and not normal behavior because of backups running or something.

I will post the solution to the problem if I do end of fixing it.

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Answer 3

wjosten

Level 10

95,321 points

Mar 7, 2011 8:27 AM in response to deronsizemore

Have you looked to see if these users login time restriction is set to a specific time window? Data sync also works with this restriction.

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Answer 4

Mar 8, 2011 7:39 AM in response to wjosten

I actually hadn't thought of that, wjosten. As it turns out, it looks like that may just be our issue. Looks like a lot of our older user accounts are set to block access from 2am - 3am. Maybe it was set that way a few years ago for backup jobs or something, I'm not sure. I had one user tell me just a few minutes ago that it seems to happen around 2am, though. So, I'm hopeful that this is the fix. I'll post back tomorrow morning and let you know if that worked.

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Answer 5

Mar 9, 2011 7:23 AM in response to deronsizemore

Seems that was the fix. Once I allowed all of our users access at all times, the message went away. Hope this thread helps someone else.

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Answer 6

Aug 8, 2011 11:05 PM in response to wjosten

Hello wjosten,

We are experiencing the same issue with users getting prompted, but Apple device users only. Where do I go to check on the user's login time restriction? Is this an Exchange setting or AD? I checked the setting in AD for these users and they can logon 24x7. Not sure where else to look. Thanks.

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Answer 7

stevebg4

Level 1

0 points

Mar 19, 2013 7:33 AM in response to deronsizemore

Hi All,

We have the same problem since we recently have provided all Iphone 5 to all our users and they get the Exchange password prompt each morning and if they press cancel then all the mail is syncs fine.

Can anyone reply back and let me know the exact settings location to change for this solution please..

thanks

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