outlook 2007 keeps prompting for username/password

CCLCLS
CCLCLS used Ask the Experts™
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i am running exchagne 2010. users keep getting prompted by outlook 2007 to enter a username and password. is this autodiscover related? any suggestions?
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Top Expert 2010

Commented:

Author

Commented:
the small fix did not work.

this is only happening for a few users, not everyone...the 2nd solution seems like it would need to be occuring for all users
Top Expert 2010

Commented:
ok.
lets start with first few steps.
a) What version of E 2007 Service Pack rollup do you have installed.

b) Lets test your autodiscover
https://www.testexchangeconnectivity.com/
Test for AutoDiscover (3x2  option )

lets see what results we get.
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Author

Commented:
i am running exchange 2010, Version: 14.00.0639.021

 Attempting to test Autodiscover for user@mydomain.org
  Testing Autodiscover failed.
   Test Steps
   ExRCA is attempting each method of contacting the Autodiscover service.
  The Autodiscover service couldn't be contacted successfully by any method.
   Test Steps
   Attempting to test potential AutoDiscover URL https://mydomain.org/AutoDiscover/AutoDiscover.xml 
  Testing of this potential Autodiscover URL failed.
   Test Steps
   Attempting to resolve the host name mydomain.org in DNS.
  Host successfully resolved
   Additional Details
  IP(s) returned: 65.xx.xx.xx
 
 Testing TCP Port 443 on host mydomain.org to ensure it is listening and open.
  The specified port is either blocked, not listening, or not producing the expected response.
   Tell me more about this issue and how to resolve it
   Additional Details
  A network error occurred while communicating with remote host
Exception details:
Message: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 65.xx.xx.xx:443
Type: System.Net.Sockets.SocketException
Stack trace:
at System.Net.Sockets.TcpClient.Connect(String hostname, Int32 port)
at Microsoft.Exchange.Tools.ExRca.Tests.TcpPortTest.PerformTestReally()
 
 
 
 
 Attempting to test potential AutoDiscover URL https://autodiscover.mydomain.org/AutoDiscover/AutoDiscover.xml 
  Testing of this potential Autodiscover URL failed.
   Test Steps
   Attempting to resolve the host name autodiscover.mydomain.org in DNS.
  The Host could not be resolved.
   Tell me more about this issue and how to resolve it
   Additional Details
  Host autodiscover.mydomain.org could not be resolved in DNS Exception details:
Message: The requested name is valid, but no data of the requested type was found
Type: System.Net.Sockets.SocketException
Stack trace:
at System.Net.Dns.GetAddrInfo(String name)
at System.Net.Dns.InternalGetHostByName(String hostName, Boolean includeIPv6)
at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)
at Microsoft.Exchange.Tools.ExRca.Tests.ResolveHostTest.PerformTestReally()
 
 
 
 
 ExRCA is attempting to contact the Autodiscover service using the HTTP redirect method.
  The attempt to contact Autodiscover using the HTTP Redirect method failed.
   Test Steps
   Attempting to resolve the host name autodiscover.mydomain.org in DNS.
  The Host could not be resolved.
   Tell me more about this issue and how to resolve it
   Additional Details
  Host autodiscover.mydomain.org could not be resolved in DNS Exception details:
Message: The requested name is valid, but no data of the requested type was found
Type: System.Net.Sockets.SocketException
Stack trace:
at System.Net.Dns.GetAddrInfo(String name)
at System.Net.Dns.InternalGetHostByName(String hostName, Boolean includeIPv6)
at System.Net.Dns.GetHostAddresses(String hostNameOrAddress)
at Microsoft.Exchange.Tools.ExRca.Tests.ResolveHostTest.PerformTestReally()
 
 
 
 
 ExRCA is attempting to contact the Autodiscover service using the DNS SRV redirect method.
  Failed to contact AutoDiscover using the DNS SRV redirect method.
   Test Steps
   Attempting to locate SRV record _autodiscover._tcp.mydomain.org in DNS.
  The Autodiscover SRV record wasn't found in DNS.
   Tell me more about this issue and how to resolve it
 
 
 
 
 
 
Top Expert 2010

Commented:

Author

Commented:
i went through the steps in the powershell for SCP, i then ran the test webservices and it all comes back saying successful. autodidiscovery is successful

but https://www.testexchangeconnectivity.com still fails the same way

Author

Commented:
autodiscoverserviceinternaluri is set correctly and
test-outlookwebservices says successful
Commented:
SP2 for office 2007 fixed it...............

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