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Outlook prompting for password randomly
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Outlook prompting for password randomly - 10.Feb.2011 8:18:32 AM
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penn_pinto
Posts: 27
Joined: 31.Oct.2007
Status: offline
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Hello all,
I have a newly created CAS array that seems to be working well. I have issued the powershell command to set existing databases to use the new cas array as the rpc client access server.
Since doing this some users are randomly getting prompted for a username and password. If they reboot there machine it then seems to work but then happens again a few hours later.
Any ideas on why this may be happening or what I can do to resolve it?
Patrick
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RE: Outlook prompting for password randomly - 10.Feb.2011 10:21:47 AM
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de.blackman
Posts: 3542
Joined: 4.Apr.2005
From: Toronto, Canada
Status: offline
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Do they get prompted when they are performing certain tasks or does it happen randomly? Also what version of Outlook are they running? If the profiles were created using Autodiscover (assuming Outlook 2007 or 2010), then can you try to remove the Exchange HTTP proxy settings in the profile settings and see if it helps?
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Ibrahim Benna - Microsoft Exchange MVP
Forum Moderator
Navantis
@IbrahimBenna
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RE: Outlook prompting for password randomly - 10.Feb.2011 2:10:10 PM
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penn_pinto
Posts: 27
Joined: 31.Oct.2007
Status: offline
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Hey there!
They get prompted during random times it seems.
The user having the issues seem to be Outlook 2007 so far.
It prompts them for there username and password and says its trying to either connect to one of the members of the array or mail.domain.com which points to the virtual ip of the cas array. In the lower right hand corner of the outlook client it says Needs Password. If you close and reopen outlook it seems to work fine.
Where do you remove the exchange http proxy settings?
Patrick
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RE: Outlook prompting for password randomly - 11.Feb.2011 9:09:33 AM
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de.blackman
Posts: 3542
Joined: 4.Apr.2005
From: Toronto, Canada
Status: offline
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Go into control panel and open mail. open the properties of the Outlook profile and go to change. On the connection tab, you will find the checkbox to enable Exchange proxy settings. Just uncheck it and see if it helps.
_____________________________
Ibrahim Benna - Microsoft Exchange MVP
Forum Moderator
Navantis
@IbrahimBenna
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RE: Outlook prompting for password randomly - 11.Feb.2011 9:28:32 AM
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penn_pinto
Posts: 27
Joined: 31.Oct.2007
Status: offline
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Hi there,
I checked and out outlook clients are already configured to have this unchecked. I checked one of the users in particular and his was already unchecked.
Patrick
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RE: Outlook prompting for password randomly - 16.Feb.2011 1:05:52 AM
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odye25
Posts: 7
Joined: 24.Aug.2010
Status: offline
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ya its very general problem that iam also facing regarding Outlook prompting for password randomly....any one plz update hot to overcome this
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XFINITY TV
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RE: Outlook prompting for password randomly - 16.Feb.2011 8:04:57 AM
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de.blackman
Posts: 3542
Joined: 4.Apr.2005
From: Toronto, Canada
Status: offline
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When you get prompted, what does it specify in the title bar of the pop-up dialog box?
_____________________________
Ibrahim Benna - Microsoft Exchange MVP
Forum Moderator
Navantis
@IbrahimBenna
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RE: Outlook prompting for password randomly - 16.Feb.2011 8:20:41 AM
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penn_pinto
Posts: 27
Joined: 31.Oct.2007
Status: offline
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Hi guys,
I actually have an open ticket with Microsoft on this. I have collected several screenshots and logs and tested certain scenarios for them and we are currently still working on figuring out the solution.
We seem to be facing an issue with one of the cas/hub servers in our cas array. I noticed that the dc's and gc's its connected to our out of its local site and in the event log it is saying that it cant find any dc's or gc's in the ad site it is in...while the other cas/hub is just fine. Microsoft is unsure of wether this is causing the prompting issue but it seems like it as the client prompts for the computer name of the cas/hub having issues finding its gc/dc.
To troubleshoot Microsoft wants me to shut off one of the members of the array for a day or two to see what happens and then power it back on and shut off th eother one and see what the behavior is like.
I will keep everyone posted on our findings.
Patrick
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RE: Outlook prompting for password randomly - 9.May2012 3:53:14 PM
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sigvardsson
Posts: 2
Joined: 2.Feb.2009
Status: offline
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Did you solve the problem, got the same Exchange 2010 SP1, outlook 2010 SP1.
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RE: Outlook prompting for password randomly - 10.May2012 8:06:28 AM
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travis.sheldon
Posts: 359
Joined: 16.Sep.2010
Status: offline
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If the credential prompt window says "Welcome back to $servername" then it's more than likely autodiscover..but the Microsoft assessment could be correct as well, which in that case you'd be getting prompted because the CAS server you're connected to now is unavailable or referred you to another CAS server requiring you to auth to the next CAS node
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