Remote Desktop Connection - Authentication error

Hello,
I wish to connect to my work PC from my laptop. The remote desktop connection was working fine till yesterday, but today i receive the following error when i try to connect -
"An authentication error has occurred. The Local Security Authority cannot be contacted. Remote Computer: <name>."
I have Win 7 ultimate installed on my 32 bit system, and have tried solutions proposed in the other threads. I do not require a NLA check for connection, i have always used the remote desktop with this option unchecked. Could anyone help me with this please?
Is this a error on my Laptop, or do i need to contact the network administrators for this?

Hi!
It could be as easy as you need to change your password on your domain accout.
Are both computers connected to the same domian or is your work computer connected to a domain and your laptop connected to a workgroup?
If your password has expired, this error can occur, so I would start to check that since it stoped working over night.
Best regards
Andreas Molin

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Remote desktop connection manager on windows 8.1, can't connect to windows server 2012 R2, Socket closed

remote desktop connection manager on windows 8.1, can't connect to windows server 2012 R2, Socket closed each time i try to open remote connection to the server,
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this issue maybe will be fix by latest version, we still waiting for it
maybe your issue can be fix using this methods
https://social.technet.microsoft.com/Forums/windowsserver/en-US/61f218a5-5ef8-49da-a035-90cdd64fc9a0/problem-with-remote-desktop-connection-manager-error-3334?forum=winserverTS
http://shawn.meunier.com/?p=1#comment-43

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I have the same problem.
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Hi,
Thanks for your comment. Sorry for late reply.
Initially please enable the PowerShell remoting in your case.
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http://technet.microsoft.com/en-us/library/hh849694.aspx
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Configuring RDS 2012 Certificates and SSO
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Thanks.
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TechNet Community Support

Remote Desktop Connection With Custom Certificate on Windows 8.1 fails

I'm trying to establish a secured remote desktop connection without success.
The setting
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Aditional information
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I solved the problem!
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Beste Gegards
abditus

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I know this is an old post but others might still be having the problem. Here's what I did.
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session bpp:i:24
auto connect:i:0
full address:s:192.168.x.x
compression:i:0
keyboardhook:i:2
audiomode:i:2
redirectdrives:i:1
redirectprinters:i:1
redirectcomports:i:1
redirectsmartcards:i:1
displayconnectionbar:i:1
username:s:USERNAME
domain:s:DOMAIN
alternate shell:s:
shell working directory:s:
disable wallpaper:i:1
disable full window drag:i:1
disable menu anims:i:1
disable themes:i:1
bitmapcachepersistenable:i:1
use multimon:i:0
winposstr:s:0,3,0,0,800,600
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videoplaybackmode:i:1
connection type:i:7
networkautodetect:i:1
bandwidthautodetect:i:1
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gatewaycredentialssource:i:4
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rdgiskdcproxy:i:0
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Hi all,
We have problem with remote desktop connection. The server that I want to connect is 2012 R2.
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Is there a solution on handheld terminal side to do?
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With Best Regards.

Hi,
What is the precise error message you are seeing? What are the exact symptoms?
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-TP

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When I try to connect to other Windows 7 Ultimate (32 bit) desktops through Remote Desktop Connection over my LAN, I get the following error:
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All machines are members of the same Windows domain.
The Windows 7 machines I am trying to connect to can connect to each other without issue. NLA is set as not required on each of the desktops, though I have tried turning the NLA setting on, and received the same error.
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http://www.davidmoore.info/2009/12/02/running-32-bit-remote-desktop-connection-on-windows-64-bit/
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Hi,
Based on my research, please check whether the value of HKLM\SYSTEM\CurrentControlSet\Control\Lsa\Security Packages is
kerberos
msv1_0
schannel
wdigest
tspkg
pku2u
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Note: Serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For
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How to back up and restore the registry in Windows.
Hope this helps.
Jeremy Wu
TechNet Community Support

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I have checked Group Policy on the server to ensure I don't have any settings restricting the number of RDP sessions.
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Are there any settings I should make on the server to allow RDCM to connect to more than 6 simultaneous RDP sessions?
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Thanks Jakub for "corflags" info.
Unfortunatelly it doesn't work because running mRemoteNG.exe process in 64bit can't load MSTSC ActiveX component (referenced assemblies) because original files were assembled from 32bit dll [mstscax.dll]?
Error message when making RDP connection:
Could not load file or assembly 'Interop.MSTSCLib, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.
I was able to create new AxInterop.MSTSCLib.dll and Interop.MSTSCLib.dll assemblies from 64bit dll version and now it works with "AnyCPU":-)
http://www.filedropper.com/axinteropmstsclib-mremoteng
Using AxImp.exe and TlbImp.exe didn't worked for me because it creates assemblies in wrong namespace "MSTSCLib" instead of "Interop.MSTSCLib" (AxImp.exe) and TlbImp.exe for changing namespace generated many "marshaled errors"
so final .dll wasn't working.
Adding MSTSCAX.dll reference in Visual Studio directly created correct and functional assemblies. Who don't know how to create 64bit compatible assemblies or don't have Visual Studio, feel free to check linked file.
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P.S. Sorry for possible technical misinterpretation, I am not programmer so creating new assemblies was trial-error process...

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So, my pc operates on Win7-64bit. I use Remote Desktop Connection to log in to the company server, running on MS Server 2008. I purchased the HP MFP M127fn today after confirming that it is compatible with both OS listed above. I successfully installed it directly to the server via usb cord - to make sure the correct drivers downloaded to the server. I was able to test-print and print from an app while physically connected to the server. I then disconnected the printer from the server and successfully connected it to my local pc. I can test-print and print from an app on my desktop. When connect to the server via RDC, it recognizes the MFP M127fn as my default printer, and sends a print job to my local pc. I can see the job in the server print queue, I can see the print job in queue on my desktop....it spools, then says it prints, however no actual print job ever materializes.
If I select to print to the MFP M127fn fax from the server, it will open the fax window on my desktop, allow me to enter a phone number, and will dial out and send the fax. So, that driver is functioning properly.
So, my question is this: If the printer and fax claim to be successfully installed, why do I not get the print job that is sent via the server and appears in my local print queue? I get no error, either on the server side or the local desktop. They both truly think the job has printed.....but no paper ever comes out.
Our company has used several other HP printers over the years with this same set-up and have never had a problem until now. The last one was also an HP MFP - the CM1312. So, I am now completely stumped by this. I called HP support and was routed through 4 different areas before I was told that no one had a clue what the problem might be. I then called the Easy-Tech desk at Staples, where I bought the printer, and was told that it was most-likely a hardware issue and I should return the printer to swap it out for another one. If nothing would print at all, I would agree it's hardware. But, as I can print locally, I'm more-inclined to think it's driver-related......any suggestions?

Hi,
The M127fn uses the PCLmS printing language which is a lightweight printing language, a such is not supported for RDP printing.
As a reference you may find the following socument about Citrix, Terminal Services and RDP Printing, as you may find listed the M127 is not supported for a such:
http://h20195.www2.hp.com/v2/GetDocument.aspx?docname=4aa0-8465enw&404m=secure-erc
That is clearly not an harware issue, however I suggest returning the printer and replacing it with a different model which better feet such a task.
The M225dn as an example uses a PCL 6 print driver and should provide a better feet for RDP printing using HP UPD.
Regards,
Shlomi
Say thanks by clicking the Kudos thumb up in the post.
If my post resolve your problem please mark it as an Accepted Solution

Remote Desktop Connection - Authentication error

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