Error 0x80005000 and DirectoryServices

Question

I m trying to run a simple LDAP query using directory services in  Net       DirectoryEntry directoryEntry   new DirectoryEntry  LDAP   someserver contoso com DC contoso DC com        directoryEntry AuthenticationType   AuthenticationTypes Secure       DirectorySearcher directorySearcher   new DirectorySearcher directoryEntry        directorySearcher Filter   string Format    amp  objectClass user  objectCategory user   sAMAccountName  0      username        var result   directorySearcher FindOne        var resultDirectoryEntry   result GetDirectoryEntry         return resultDirectoryEntry Properties  msRTCSIP-PrimaryUserAddress   Value ToString      And I m getting the following exception   System Runtime InteropServices COMException  0x80005000   Unknown error  0x80005000    at System DirectoryServices DirectoryEntry Bind Boolean throwIfFail    at System DirectoryServices DirectoryEntry Bind     at System DirectoryServices DirectoryEntry get AdsObject     at System DirectoryServices DirectorySearcher FindAll Boolean findMoreThanOne    at System DirectoryServices DirectorySearcher FindOne     As a snippet in a Console app  this works  But when I run it as part of a WCF service  run under the same credentials   it throws the above exception   Any suggestions   Thanks

User · Answer

Just had that problem in a production system in the company where I live... A webpage that made a LDAP bind stopped working after an IP changed.

The solution... ... I installed Basic Authentication to perform the troubleshooting indicated here: https://support.microsoft.com/en-us/kb/329986

And after that, things just started to work. Even after I re-disabled Basic Authentication in the page I was testing, all other pages started working again with Windows Authentication.

Regards, Acácio

User · Answer

I had this error as well and for me it was an OU with a forward slash in the name   File Folder Access Groups    This forum thread pointed me in the right direction   In the end  calling  Replace            on each path value before use solved the problem for me

User · Answer

I had the same error - in my case it was extra slash in path argument that made the difference   BAD   DirectoryEntry directoryEntry        new DirectoryEntry  LDAP   someserver contoso com DC contoso DC com                            userName  password     GOOD   DirectoryEntry directoryEntry        new DirectoryEntry  LDAP   someserver contoso com DC contoso DC com                           userName  password

User · Answer

This Error can occur if the physical machine has run out of memory  In my case i was hosting a site on IIS trying to access the AD  but the server had run out of memory

User · Answer

I had to change my code from this   DirectoryEntry entry   new DirectoryEntry path  ldapUser  ldapPassword    DirectorySearcher searcher   new DirectorySearcher     searcher SearchRoot   entry   searcher SearchScope   SearchScope Subtree   To this  DirectoryEntry entry   new DirectoryEntry path  ldapUser  ldapPassword   DirectorySearcher searcher   new DirectorySearcher    searcher SearchScope   SearchScope OneLevel  SearchResult searchResult   searcher FindOne

User · Answer

It s a permission problem   When you run the console app  that app runs with your credentials  e g  as  you    The WCF service runs where  In IIS  Most likely  it runs under a separate account  which is not permissioned to query Active Directory   You can either try to get the WCF impersonation thingie working  so that your own credentials get passed on  or you can specify a username password on creating your DirectoryEntry   DirectoryEntry directoryEntry        new DirectoryEntry  LDAP   someserver contoso com DC contoso DC com                           userName  password       OK  so it might not be the credentials after all  that s usually the case in over 80  of the cases I see    What about changing your code a little bit   DirectorySearcher directorySearcher   new DirectorySearcher directoryEntry   directorySearcher Filter   string Format    amp  objectClass user  objectCategory user   sAMAccountName  0      username    directorySearcher PropertiesToLoad Add  msRTCSIP-PrimaryUserAddress     var result   directorySearcher FindOne     if result    null       if result Properties  msRTCSIP-PrimaryUserAddress      null             var resultValue   result Properties  msRTCSIP-PrimaryUserAddress   0            My idea is  why not tell the DirectorySearcher right off the bat what attribute you re interested in  Then you don t need to do another extra step to get the full DirectoryEntry from the search result  should be faster   and since you told the directory searcher to find that property  it s certainly going to be loaded in the search result - so unless it s null  no value set   then you should be able to retrieve it easily   Marc

User · Answer

I had the same again and again and nothing seemed to help    Changing the path from ldap    to LDAP    did the trick

User · Answer

The same error occurs if in DirectoryEntry Patch is nothing after the symbols  LDAP      It is necessary to check the directoryEntry Path before directorySearcher FindOne    Unless explicitly specified domain  and do not need to  LDAP       private void GetUser string userName  string domainName         DirectoryEntry dirEntry   new DirectoryEntry          if  domainName Length  gt  0                   dirEntry Path    LDAP       domainName               DirectorySearcher dirSearcher   new DirectorySearcher dirEntry        dirSearcher SearchScope   SearchScope Subtree       dirSearcher Filter   string Format    amp  objectClass user    cn  0   sn  0    givenName  0   sAMAccountName  0        userName        var searchResults   dirSearcher FindAll           var searchResults   dirSearcher FindOne          if  searchResults Count    0                   MessageBox Show  User not found                else                  foreach  SearchResult sr in searchResults                            var de   sr GetDirectoryEntry                  string user   de Properties  SAMAccountName   0  ToString                  MessageBox Show user

User · Answer

On IIS hosted sites  try recycling the app pool  It fixed my issue  Thanks

User · Answer

Spent a day on my similar issue  but all these answers didn t help   Turned out in my case  I didn t enable Windows Authentication in IIS setting

User · Answer

In the context of Ektron  this issue is resolved by installing the  IIS6 Metabase compatibility  feature in Windows      Check  Windows features  or  Role Services  for IIS6 Metabase   compatibility  add if missing      Ref  https   portal ektron com KB 1088

User · Answer

Just FYI  I had the same error and was using the correct credentials but my LDAP url was wrong     I got the exact same error message and code

User · Answer

I encounter this error when I m querying an entry of another domain of the forrest and this entry have some custom attribut of the other domain  To solve this error  I only need to specify the server in the url LDAP   Path with error   LDAP   CN MyObj DC DOMAIN DC COM Path without error   LDAP   domain com 389 CN MyObj DC Domain DC COM

[c#] Error 0x80005000 and DirectoryServices

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