Comments on: 401 Error when attempting Test-OutlookWebServices

By: Pravin Desai

Pravin Desai — Tue, 04 May 2010 09:16:31 +0000

i have updated the rollpack 2 exchange 2007 sp2. I started getting the error.

1st option doesn’t work.
It work for me with second option on production environment.

Disable the loopback check (less-recommended method)
The second method is to disable the loopback check by setting the DisableLoopbackCheck registry key.

To set the DisableLoopbackCheck registry key, follow these steps:
Set the DisableStrictNameChecking registry entry to 1. For more information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base:
281308 (http://support.microsoft.com/kb/281308/ ) Connecting to SMB share on a Windows 2000-based computer or a Windows Server 2003-based computer may not work with an alias name
Click Start, click Run, type regedit, and then click OK.
In Registry Editor, locate and then click the following registry key:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsa
Right-click Lsa, point to New, and then click DWORD Value.
Type DisableLoopbackCheck, and then press ENTER.
Right-click DisableLoopbackCheck, and then click Modify.
In the Value data box, type 1, and then click OK.
Quit Registry Editor, and then restart your computer.

plz let meknow what exact jhappen when we update the roll pack /service pack.

Regards,
Pravin Desai.

By: William Cheung

William Cheung — Tue, 20 Apr 2010 10:31:36 +0000

great post – you can also get this working without disabling the loopback security check by following METHOD 1 of this article:
http://support.microsoft.com/kb/926642

By: Geek

Geek — Mon, 22 Mar 2010 17:27:35 +0000

Wow – can’t thank you enough for this fix. Worked like a CHARM

By: ctcbod

ctcbod — Thu, 17 Sep 2009 10:34:40 +0000

Kyle, have you run the SCW? if so have a look at the security logs on the exchange box. I had very similar issues and had to create allow rule in the windows firewall, granting client access to mad.exe on the exchange box.

By: Exchange Genie

Exchange Genie — Sat, 12 Sep 2009 18:31:31 +0000

no that should not… I would look at your autodiscover setup that you have configured

By: Kyle Torkelson

Kyle Torkelson — Thu, 10 Sep 2009 01:31:14 +0000

Would this error stop new users (that have mailboxes on the same server that the 2nd Autodiscover web site is hosted) from being able to setup new Outlook profiles?

My current users can run the Test Email Autoconfiguration and get success but if they delete their Outlook profile, when Autodiscover tries to setup a new Outlook profile, they are continually prompted for their username/password and are never able to get back into Outlook.

Hopefully you have some suggestions for me!!

By: Bipin

Bipin — Mon, 29 Jun 2009 11:09:41 +0000

Hi I am also getting the same Id : 1013
Type : Error
Message : When contacting https://webmail.virginmobile.in/Autodiscover/Autodisc
over.xml received the error The remote server returned an error: (401
) Unauthorized.

Id : 1006
Type : Error
Message : The Autodiscover service could not be contacted.

From internal everything is working fine but when i connect my mail from outside as in RPC over http i am not able to put out of office and not able to download OAB also.

Can you please help me out. I purchased public cert which includes the my autodiscover.

By: Exchange Genie

Exchange Genie — Thu, 30 Apr 2009 12:07:42 +0000

the fix would be to leave the changes you have made, else only make the mods when you need to use the test command

By: Simon Shaw

Simon Shaw — Thu, 30 Apr 2009 00:50:41 +0000

This worked for me! Thanks!
So, how do we fix it permanently ?

By: Anonymous

Anonymous — Fri, 01 Aug 2008 02:08:00 +0000

Thank you!!! Our spam filter was not working properly and we needed to resolve this problem asap. I am not certain why it just decided to fail, because the initial tests worked without issue…Regardless, thanks again for your help.