Remote Desktop Connection Broker Client failed to redirect the user 2012

Server 2012 RDS - Remote Desktop Connection Broker Client failed to redirect the user domain\username. Error: NULL

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Windows Server 2012 General

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  Seeing the error listed here.

  The Remote Desktop Connection Broker server could not enumerate the targets for the provider named NULL from the database.
  
  Pooled virtual desktop collection name: NULL
  Error: Error code: 0xFFFFFFFF.

  Broker and Hyper-V are on the same physical machine.

  Any ideas on where to start troubleshooting this?

  Used the happy wizard to create everything, and got no errors.
  I have created a small pool collection, and given rights to domain users. Everything "looks" good.
  
  • Edited by The_Ron Wednesday, September 5, 2012 4:57 PM Clarity

  Wednesday, September 5, 2012 2:47 PM

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  Obvious issue appears to be the SessionBroker cannot access its own database. Anyone out there experienced this or know of a possible solution.

  I have removed all RD services and re-added them to the machine a couple times, but the result seems to be the same. Permissions issue obviously but I am at a loss. What is location of the database and what account is trying to access it?

  Thursday, September 6, 2012 1:54 PM

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  I blocked the parent GPOs and checked locally to be sure nothing was coming through. I removed the Roles and database folder; which it does not do after the role is removed. I then rebooted and reinstalled. Same results.

  Thinking it may be time to open a ticket on this.

  Thursday, September 6, 2012 6:32 PM

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  Are you using mstsc.exe or the web interface for internal or external?

  Monday, September 10, 2012 8:41 PM

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  Still working with MS on this, but the only thing I have confirmed with them is RDC 7 must be used. I'm not sure if that helps you, but I will report back when I get a solution.

  //www.microsoft.com/en-us/download/details.aspx?id=29022

  Tuesday, September 11, 2012 2:21 PM

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  this would explain why i cant connect from my mac :] and also my ipad!

  i will give a try using windows

  Wednesday, September 12, 2012 8:39 AM

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  Dear All,

  I got similar problem -- and I cannot open the broker DB file at C:\Windows\rdcbDb because some other app is using it

  Has anyone been able to resolve this issue?

  Thanks,

  Leon Li

  Monday, April 1, 2013 3:32 AM

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  I have same problem How do you delete fields in database? How can i open/attach database?

  Thursday, April 18, 2013 1:20 PM

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  First run

  Set-Item WSMan:\localhost\Shell\MaxMemoryPerShellMB 1000",
  
  then run

  netsh winhttp reset proxy

  Thursday, November 7, 2013 6:47 AM

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  Hi,

  >The Remote Desktop Connection Broker server could not enumerate the targets for the provider named NULL from the database.

  this means 'there is no collections'. Open server manager - RD Services - Collections and create a new one [add your server to the collection]. Now session broker have acollection and a potential targets [RDS servers] list and can select a server from this list and redirect a client.

  //OpsMgr.ru/

  • Proposed as answer by Stefano Belluomini Monday, October 19, 2015 1:18 AM

  Thursday, July 2, 2015 8:12 AM

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  Same here, It was working before, then just stopped. I checked the database and there was an entry with a NULL pool Id. After I added a collection it changed from null to 1 and RDP to the broker server worked again. I removed the collection and the line was deleted from the database and RDP still worked.

  • Proposed as answer by jn3825 Friday, January 5, 2018 12:57 AM
  • Unproposed as answer by jn3825 Friday, January 5, 2018 12:57 AM

  Thursday, January 21, 2016 10:48 PM

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  Better late than never... Very grateful for this post. Of all the solutions proposed in this thread Matt's solution worked for me. The WID/rdcms was not corrupted; All remote services were operational, but could not access to Server Manager/ Remote Desktop Services/ Collections/ "Collection Name. Also any PowerShell access to RDServer ended in error.

  Now all good, thanks to everyone

  Wednesday, June 14, 2017 12:14 AM

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  Thanks, after hours of surfing...... this is the solution.... a empty collection and works.
  

  1 Dc server and license server
  1 RD host + rd broker + No RD gateway + no RD VDI

  very minimal...... a lot of time wasted.
  
  I need to access direct on the desktop of rd host, but a rd broker is pbligated.

  Friday, August 10, 2018 3:14 PM

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  We had the same problem, hours and hours....and then this solved the problem with the database...:

  //docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/ee907343[v=ws.10]?redirectedfrom=MSDN

  Friday, October 18, 2019 8:30 AM