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RDSH network printer driver sometimes lost automatically

July 4, 2018, 2:19 am
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Hi,

We are using remote desktop session host. the operating system is windows server 2016. Recently several user complain that their printer gone automatically. the printer installed on the printer server. we connected to printer through\\servername\printername.

on the event viewer. Applications and services----->Microsoft----->windows---->print service_

there have some error message like the following:

1. the default printer was changed to \\serveranme\printer name . see the vent user data for context information

2.\\servername\printer name    initialization failed at \\servername\print$\BID\HPBOID.dll.  Error 3. The system can not find the path specified occur because of system instability or a lack of system resources

3. Settings for printer.... were changed. No user action is required.

Anyone what is the problem of this

Looking forward for your feedback

Best Regards,

Apollo Ye

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Memory exhaustion on Win10 Pro via RDP

July 11, 2018, 1:36 am
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Hello,

I'm using freerdp to check RDP availability of a Win10 virtual machine running under Proxmox 5.2 (kvm). The command used is:

/usr/bin/xfreerdp /cert-ignore /auth-only /u:$USER /p:$PASS /v:$HOST

Every time this command is launched, the svchost.exe process related to "TermService" grows around 8MB in its "private bytes" memory. That amount is reduced to around 5MB if you set the display size in freerdp to 1x1 (/size:1x1). That memory is never returned to the system and in a few days some messages related to "resource exhaustion" are logged and eventually RDP stops working. At that time, that svchost.exe process has more than 10GB of "private bytes" (VM has 20GB total memory). Win10 needs to be restarted for RDP to work again, as restarting TermServices service does not help.

Adding memory or a bigger pagefile to the VM only delays the time when RDP stops working, it will eventually fail anyway.

I dont know if this is caused by FreeRDP shutting down the connection without notifying the RDP Server properly or if it is a Windows issue or a configuration issue. It's very easy to create a DoS to a Win10 Pro RDP
server if you have valid credentials. I haven't tested any other Windows version nor any other virtualization environment. Luckly, it doesn't happend if you dont have valid credentials.

Please, give it a look to find out what could be causing this behaviour.
Thanks a lot
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Issues connecting to RD Gateway

July 9, 2018, 12:44 am
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Dear all,

I have some trouble with some (not all) users connecting to RD Gateway. The RD Gateway is running Windows Server 2012 R2, the clients having the issues are Windows 10.

When these users try to connect to the GW, the following error with Event ID 306 occurs in the Eventlog:

The user "Unknown", on client computer "x.x.x.x", was not authorized to connect to the RD Gateway server because a tunnel could not be created. The authentication method attempted: "Cookie" and connection protocol "HTTP". The following error occurred: "2147965432".

I tried to Google that but with little to no success. I found similar issues though, talking about checking the GW Certificate in one post, actually that was setup correctly. Another post talked about just doing an iisreset, which I did but also to no avail.

Also I checked the LANMan settings (Network security: LAN Manager authentication level) on server and client both seem to be established via Domain GPO (I can't change them. Anyway, they are both set to the same level.

Did anyone else face similar issues with RD Gateway and Windows 10? What else could I do?

Any help is much appreciated.

Thanks,

Harald


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Server 2008R2/2012R2 Entire Domain Seems Not To Be Running Login Script Suddently

July 8, 2018, 8:13 pm
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We have a domain, with multiple servers and multiple users. We use a domain login script, which primarily maps drives, and everyone is setup to run the login script in Active Directory. It has been working for years. Suddenly, last week, I'm getting reports of drive letters not being mapped. I tested several users, and it wasn't running the script on login, on either our 2008R2 or our 2012R2 servers. If I manually run the script, it works fine, so there isn't anything regarding access to the script, or the locations. Temporarily, I setup group policies to map the drive letters, but that isn't really the way I'd like to have things work. Any idea what might be wrong?

Thank you.

Jeremy Heymann Market Mentor Online

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Server 2008 R2 logs off users at login

July 11, 2018, 4:25 am
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We have an issue that just started happening today on our standalone Windows Server 2008 R2. There is no domain it's just using local users and groups when a particular user tries to login it goes through the process and then immediately logs them off before the desktop is reached.

The following errors are logged in the event viewer:

Event ID 5: source: Kernel General{Registry Hive Recovered} Registry hive (file): '\??\C:\Users\username\ntuser.dat' was corrupted and it has been recovered. Some data might have been lost. followed by a event id 7002: User Logoff Notification for Customer Experience Improvement Program

If I setup a brand new user they have the same issue, if I then add the existing user or newly created user to the administrator group they can both logon, remove them from the group and they can no longer logon anymore.

I have run a scandisk, sfc /scannow, rebooted the server, disabled customer experience improvement, If I try to run gpedit.msc I get "Administrative templates encountered an error while parsing incorrect document syntax" I get a half dozen of these before it allows me in. I tried to delete the users profiles and copy over another working users ntuser.dat but that doesn't help. All terminal server licensing is correct and working.

Leaving these users as admins is not a solution for obvious reasons, any ideas?

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Server 2016: Failed to find a virtual desktop with the specified name

June 13, 2018, 7:55 am
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Hello,

I have a Server 2016 RDS for Personal unmanaged virtual Desktop Collection. I see in the Collection a VM that is not assigned to a User.

I like use the powershell to assign the free VM to a User:
Set-RDPersonalVirtualDesktopAssignment -ConnectionBroker $CB -CollectionName $Collection -User $User -VirtualDesktopName $vc

Output: Failed to find a virtual desktop with the specified name VC20029. Specify a valid virtual desktop Name.

If I use a virtualDesktopName that is allready assigned

Output:  The virtual desktop is already assigned to user domain\username

If I use: Get-RDVirtualDesktop -CollectionName $Collection | Where-Object{$_.VirtualDesktopName -eq $vc}

Output:

CollectionName       VirtualDesktopName   State        ProvisioningStatus   HostName                                                   
--------------       ------------------   -----        ------------------   --------                                                   
My-VDI               VC20029              STOPPED      UNKNOWN              Server01                                  

Why isn't assignment not working?


Thankful for any Suggestion Holger

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Disable TLS 1.0 on a FIPS enabled Windows 2012 R2 server

June 29, 2018, 12:34 pm
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We are disabling TLS 1.0 per the standard recommendation via keys:

HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client

HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server


What are seeing is very odd.  On all systems that are not FIPS enabled, RDP (port 3389) is only accepting TLS 1.2 connections (this is per our Nessus scans).  On all systems thatare FIPS enabled, RDP is accepting TLS 1.0-1.2 connections.  



The reg keys are the same.  Is this a known issue with FIPS + RDP + these protocols?  Can someone provide any documentation?



Thanks much

Blake


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RemoteApp - Pop-ups hidden behind main window

October 11, 2013, 3:51 am
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We are using RemoteApp in Windows Server 2012 to publish Microsoft Dynamics AX 2012.

Sometimes when the user clicks on something inside the application that generates a popup of a new windows, this new window is opened behind the main windows. This causes confusion to the users.

I have found the following Kb articles/hotfixes that seem to describe the problem:
http://support.microsoft.com/kb/2580346
http://support.microsoft.com/kb/2384602
http://support.microsoft.com/kb/983533

However, all these hotfixes are applicable only to Windows 2008 (R2), and not Windows Server 2012.

Are there any updated hotfixes for 2012 somewhere?

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Issues with RODC in DMZ

July 11, 2018, 8:19 am
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Hi, 

I am following the guide (https://docs.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/rodc/install-a-windows-server-2012-active-directory-read-only-domain-controller--rodc---level-200-#stage-rodc-workflow)  to install 2 RODC servers in our DMZ. 

All setup goes ok, until I reach the Attach stage, then I get error on both systems 'The wizard cannot access the list of domains in the forest.  The network path was not found. 

I can ping the Default gateway, Nslookup sees the Primary Domain Controller, I have flushed the dns, but always the system fails with the above error.  Also, always fails is Dfsrdiag command. 

Adding the A record in DNS did not fix either. 

Help please?  Thanks 

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Issues with RDP after RDS install

July 11, 2018, 10:13 am
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Hello hoping someone has a quick answer. I have a 2012 R2 server I installed RDS on. After I installed RDS I attempted to configure a collection. I install the collection with pretty basic settings. I give it a collection name, I add the local server to the server pool ( its the only option) I remove the domain user group and add domain admin to the "User Groups". I unchecked user profile disks because its not required. I then hit create. It does its thing and comes back with the error " Unable to configure the RD Session Host server <SERVER / FQDN> Invalid operation.

When I hit close the collection is there. I have not been further than this to test anything. There is another issue. After I add the RDS role and do this. When I attempt to RDP back to the same server I can no longer RDP. I get an error the server refused the connection. When I remove the RDS role I can remote back to the device.  

I did find this article ( https://support.microsoft.com/en-us/help/3014614/you-cannot-create-a-session-collection-and-an-error-occurs-in-windows ). This did not help.  Any thoughts would be great. 

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How does one specify licensing mode in RDS on Server 2016

February 10, 2017, 12:32 pm
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In RD Licensing Diagnoser on Server 2016, I get a message that the licensing mode for the Remote Desktop Session Host server is not configured. How does one set this. I cannot find the "RD Session Host Configuration Tool" like I we have used in the past with Windows Server 2008 R2 to accomplish this task.

Thanks
NK

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W10 1709 RemoteApp - Pop-ups hidden behind main window

November 16, 2017, 1:28 pm
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Hi, I've this issue after migration of RDS server from 2012 R2 to 2016 and client have Windows 10 1709 but with Windows 10 1703 no issue.

Any suggestions?

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Revoke or Stop issuing Windows 2000 Server - Built-in TS Per Device CALs

May 16, 2012, 5:47 am
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We have a Windows 2008 R2 Terminal Server licensing Server in our environment. When checking the issued CALs in Remote desktop Licensing manager, i see Windows 2000 Server - Built-in TS Per Device CALs. I believe these are CALs which are issued by the Windows 2000 terminal Server itself to the Device or client. 

My question is:

1. Is there a way to find out which Terminal Server is issuing the CALs or can we revoke the licenses?

2. Can we stop Issuing Windows 2000 Server TS CALs?

 Help in this regards is much appreciated 

Thank You

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2012 RDP / RDS Remote Desktop Terminal Server incompatible with Windows 2016 Domain Controllers? Access Denied

July 7, 2018, 11:11 pm
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So we have a few 2012 R2 Terminal Servers at my company that were working fine until we started the process of replacing our Domain Controllers with new Windows 2016 Servers.

Since then our users are getting intermittent "Access Denied" errors when they try to RDP to these terminal servers.

Generally the "Access Denied" error occurs when a terminal servers starts to use one of the newly added 2016 domain controllers. We can workaround the problem by sending an command telling the terminal server to use one of the older 2012 R2 domain controllers instead. Then things work again.

So the question:

Is there a misconfiguration with the new 2016 domain controllers or can an adjustment be made with the 2012 Terminal Servers?

Is the problem that Windows 2016 Domain Controllers are not compatible with 2012 R2 Remote Desktop Services servers?

We are having problems finding documentation on this.

What we do know is that if we decide to start upgrading to new 2016 Terminal Servers we will have to purchase new 2016 RDS Cals (not sure if we are budgeted for that...)

For those interested, you can find out the domain controller you are using by running the following elevated PowerShell command (this assumes the command is run remotely as you might be locked out due to the RDP access denied error):

nltest /Server:<your-terminal-server> /DSGETDC:<ad domain>

to specify the domain controller you want to be on (in our case we want to switch to back to a 2012 R2 domain controller), the command is:

nltest /Server:<your-terminal-server> /SC_RESET:<ad domain>\<specific domain controller>

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moving remote desktop terminal license from 2008 r2 to 2016 server, after license 10 cal user license install its asking for 5 5 alpha char

July 6, 2018, 5:39 pm
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I assumed its the 25 alpha of the OS of a connecting user, but all that i attempt to input fail.

Is it looking for another 25 alpha other than OS, connecting computers are win 7 pro and windows 10.

Server is setup in a workgroup.

When purchased on the last workgroup server in open volume licensing we received one 7  5 alpha character code and the remote desktop licensing accepts that license.

 Any input appreciated

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2 or 3 server rds 2016 farm in azure, setup questions

July 6, 2018, 12:32 pm
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I have a client that is on a single 2012 rds server now in azure using remote apps internally and externally.

We'd like to do two 2016 servers for more redundancy.  Is it possible to install the gateway/connection broker/web/session host roles on both servers and configure for high availability?  Otherwise could we do 2 session hosts and 1 server with the gateway/connection broker/web services on it.  A lot of the examples show 4,6 or more servers but they do not want to pay for that.  Just looking for some ideas here, thanks!



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Windows 2016 RDS Deployment

July 5, 2018, 12:21 am
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Dear All,

We are planning to deploy Windows 2016 RDS infrastructure. does Windows 2016 RDS support windows 2008 RD sessions?

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Published App Screen Redraw Issue under Windows 10

July 4, 2018, 6:12 pm
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Hi Everyone. We have a published app problem that occurs only under Windows 10. The app has been published from a Server 2012 R2 terminal services environment. The issue presents itself as a failure for the published app to redraw its screen after the user shifts focus to another application and then swaps back again.

Initially the fault presented itself as a Z order display issue, i.e. any dialogue boxes would display behind the published apps foreground / main interface. Clicking on the applications icon in the system tray would cause the dialogue box to come to the foreground. After hours of fault finding, I managed to fix that issue by disabling "Use advanced RemoteFx graphics for RemoteApp" on the Server 2012 R2 Terminal Server using gpedit.msc (in Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Remote Session Environment). I was happy and all seemed fine, but...

Now the fault presents itself as a complete failure to redraw the foreground. This happens after the user has swapped focus from the published app to another app and back again a few times. It does not happen immediately. The app focus is there, as you can still click menu items etc (fun when their location is not drawn) and they will behave normally (i.e. redraw occurs over the display area of the drop-down menu for example). The only way to fix this is to exit the published app and relaunch. It will then work for a while and then the fault repeats.

This issue does not happen in a full terminal services session, only if the app is run as a published app.

If anyone has any ideas to resolve this it would be much appreciated.

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The servers must be added to the server pool

July 3, 2018, 7:57 am
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Hi,

We've recently moved a client's cloud server to a new data center. The process involved making a backup of the VM in the old environment, and restoring the VM in the new data center environment. This server runs the Remote Desktop Services role on Windows Server 2012 R2.

The migration seemed to go smooth, and the end-users can access their applications using RemoteApp, from any remote location. This particular client has a technical contact, who uses Server Manager on her Windows 10 PC to disconnect users from RDS as and when she needs to.

For some reason, since the migration, if we open Server Manager on the server itself, or on the technical contacts PC, we receive the infamous message:

The following servers in this deployment are not part of the server pool: 
1. [server_name] 
The servers must be added to the server pool.

The thing is, the server IS in fact visible in the list of Servers in Server Manager. I've tried re-adding it using the AD search, using the IP address in the DNS search, and even using the FQDN in the DNS search. All it seems to do is add another instance of the same server to the list of servers, but the above message is persistent and RDS can't be managed from Server Manager.

Has anyone seen this type of odd behavior before?

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Cant able to connect to RDP in windows 10

July 3, 2018, 3:58 am
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Hi Tech Support,

i cant able to connect to remote for other systems, im using windows 10 OS but we are facing this issue hence after windows updated, im sure this issue is because of windows update,  Please find below error & please support me on this, 



An authentication error has occured

the function requested is not supported

Remote computer 192.168.0.44

this would be due to credSSp encryption oracle remidiation.

for more information, see https://go.microsoft.com/fwlink/?linkid=866660

i hope i will get the exact solution, waiting for the reply

Thanks in Advance

Regards

ILIYAZ

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