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Membership.ValidateUser returns error message The server is unwilling to process the request. (Exception from HRESULT: 0x80072035)

Posted on 2010-09-08
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Last Modified: 2013-11-08
I currently have a web site that is integrated with Active Directory using the MemberShip provider.  Everything works fine and I can create/edit/ and change passwords for users. Occasionally a user gets hung and calling the ValidateUser method returns  "The server is unwilling to process the request. (Exception from HRESULT: 0x80072035)" for a particular user.  The only way around this is to delete and add the account again.  Other users can continue to log in to the system.

Here is the method call : Membership.ValidateUser(uid, pwd);
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Question by:zekuczynski
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by:LlamaJoe
ID: 33632891
In a brief web search - I found a number of references to this error and the user not having a password that met the Password policy as defined on the domain controller.  So ensure that the GUI enforces the same password policy as AD.
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Author Comment

by:zekuczynski
ID: 33637067
I did.  I even set it to a password that I used to reset mine that did not conflict with the password policy.  Still no luck.  The domain lets me change the password for this user and I can get the user using GetUser(userid).  I still get this error when I try to validate the account.
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Expert Comment

by:LlamaJoe
ID: 33668708
have you defined a machine key in your web.config?  this will ensure that the password hash is always the same.

try this tool to create a machine.key value - http://aspnetresources.com/tools/machineKey 
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Author Comment

by:zekuczynski
ID: 33674339
Yes we do have a machinekey in the web.config file
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LlamaJoe earned 500 total points
ID: 33678183
can I assume you have both encryption and decryption keys defined?
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Author Closing Comment

by:zekuczynski
ID: 33852208
I will continue to research this further.
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