Remote Desktop VirtualChannelOpen fails: ERROR_NOT_SUPPORTED

September 25, 2019, 12:10 pm

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Hi,

 

I'm trying to open a virtual channel in my remote desktop-session. I'm calling the WTSVirtualChannelOpen-function of the WtsApi32.dll. 

I already succeed to open and use the virtual channel, but since the windows-update 1903 the open-function failes with the error-code 50 (ERROR_NOT_SUPPORTED).

 

The client and terminal are both running windows 10 with the 1903-update.

I tried to check the Permission-Settings for Remote Desktop Services Connections, but I don't know how.
Other References said it moved to the Group-Policies, but I can't find it there.

I also tried to use the newer VirtualChannelOpenEx-function, but same result. The OpenServer- and EnumerateSessions-function are working fine.

So I'm searching for this Settings:
https://docs.microsoft.com/de-de/windows/win32/termserv/terminal-services-permissions

Thank you for your help,

Nils G.

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Measure memory usage per process per user

September 25, 2019, 3:38 pm

≫ Next: connection broker unoperate when activating a second network interface

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We utilize a Remote Desktop deployment to provide a unified browsing experience for our libraries.  There are 115 clients involved hosted over 3 host servers. 

While numbers per server are balanced workload is not. The presentation to the customer is via a browser which is in a kiosk mode.  I am wanting to even out the distribution of workload by balancing the "users" who generate the greatest activity wore uniformly across the host servers.  I can do this based upon the memory usage for the kiosk app process, which I can get a breakdown for but nothing I have found includes the "user" name.

Any help appreciated

 

connection broker unoperate when activating a second network interface

September 2, 2019, 9:02 pm

≫ Next: Migrate connection broker 2016 to 2019

≪ Previous: Measure memory usage per process per user

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HI, sorry for my english .

On a 2016 virtualized server domain member, I had a RDS working fine with one network interface.

For backup purpose to a private lan, I add a network card with a different ip network.

When this new network card is disabled, all is runing fine, I can as admin access to server manger and RDS services and rdp client cann have access to the session on the server.

When I activate this second network interface, access to RDS service configuration via server manger is unable (I get a "connection to server broker ...." with no resposn..) AND the client can't access to the terminal. RDP access become impossible.

Any ideas ?

Migrate connection broker 2016 to 2019

July 25, 2019, 5:13 am

≫ Next: Windows Server 2016 RDSH Licensing Issue

≪ Previous: connection broker unoperate when activating a second network interface

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Hi,

As RDS 2019 upgrade documentation seems to be non existing, I thought I'd ask this question here. Is it still necessary to migrate a connection broker from version 2016 to 2019 by doing an in place upgrade of the machine as was the case with 2012 to 2016? As the connection broker role is basically the same in both versions, I thought it might be possible to place the 2016 broker in HA mode, add a 2019 broker and remove the 2016 machine after that.

Is that possible?

Windows Server 2016 RDSH Licensing Issue

September 25, 2019, 10:30 pm

≫ Next: RDS 2012 R2 / Session timeouts reset each time a new user log in

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Hi all,

I have a Windows Server 2016 Remote Desktop licensing issue. The licensing server is in Per User mode showing 6 available licenses. The Licensing diagnoser on one of my RDSH servers is showing no licenses available and the licensing server is in per device mode. Group Policy is deployed to utilize a specific licensing server and per user mode is enabled.

Anyone have any suggestions?

RDS 2012 R2 / Session timeouts reset each time a new user log in

September 3, 2019, 8:41 am

≫ Next: RD Connection Broker issue

≪ Previous: Windows Server 2016 RDSH Licensing Issue

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Hi,

We have set up ( with GPO) session timeout for RDS users :
- IDLE session : 1 hour
- disconnected session : 1 hour
- close session when timeouts are reached

But sessions never hit timeout because each time a new user logs in or an IDLE user reconnects, all IDLE session counter are reset to 0.

I am not able to figure out what is happening...

Does anyone have an idea ?

Regards,

Arnaud

RD Connection Broker issue

September 5, 2019, 6:27 am

≫ Next: From roaming profiles to user profile disks

≪ Previous: RDS 2012 R2 / Session timeouts reset each time a new user log in

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Hi

From time to time we have BSOD on Session Host servers. Users which had sessions on these server can't reconect to another Session Host server, because Connection Broker redirects them to inaccessible server. It lasts about 30 minutes.

Is some way to "inform" Connection Broker that Session Host is unavailable now? Or reduce time out?

From roaming profiles to user profile disks

September 26, 2019, 12:09 am

≫ Next: Windows Server 2019 VDI Licensing

≪ Previous: RD Connection Broker issue

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Hi folks,

I have a Windows Server 2016 Remote Desktop Services environment. On one server collection there areno UPD's configured. Each user account has a roaming profile path configured on the profile tab in AD.

I want to migrate to User Profile Disks. There is some content in the roaming profiles directories that has to be in the User Profile Disks in order to start an application properly.

On the website below I red that the content is copied automatically after configuring the UPD path and logging on and off with a user account. I presume I can delete the roaming profile pathafterwards?

https://www.techslave.ch/2016/03/10/from-roaming-profiles-to-user-profile-disks-part-i-2/

The question is, is this information correct? Or is there another / better way to do this, or is this the way to go?

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Windows Server 2019 VDI Licensing

September 11, 2019, 1:00 pm

≫ Next: TSE licenses

≪ Previous: From roaming profiles to user profile disks

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I've read a lot of documentation regarding VDI and RDS, yet I am still a little confused on some aspects.

Consider my company's scenario:

- We have a Windows Server 2019 Datacenter Edition running on a physical machine with 2 8-core processors (total of 16 cores)

- All employees have Software Assurance included with their Windows OS license on their laptops

We want:

- To host Client-based VMs (Win10 mainly) on our physical WS2019 and allow employees to remotely access their dedicated personal virtual machines

- Very rarely, we would occasionally like to host Server-based VMs (WS2012RS and WS2016 mainly) on our physical WS2019 and allow employees to access their personal server virtual machines. Our employees will not need to use this scenario often, only in unique circumstances.

- None of these VMs would be in use long-term. At max, each VM would be used for a month or two. More often, VMs will probably be needed on a week-long basis, then destroyed.

To my understanding:

- We need to apply a core-based license to our physical WS2019 Datacenter, covering all 16 cores, for the hardware to be in compliance.

- We can deploy as many Windows Server-based VMs as we would like, and can properly handle licensing VM OS's using AVMA

- Employees can connect to Server-based VMs only if they have a CAL

- We can deploy Client-based VMs, and employees can concurrently access up to 4 client virtual machines at any given time because they have SA

My questions:

- Do I have any of the information above wrong? Please correct me if I do

- Do we need to worry about licensing each individual Client-based VM? It seems ridiculous to need to provide a separate product key/activation for each VM instance when they're only needed for a short time.

- Can we deploy both Server-based and Client-based VMs like this in the same VDI environment?

- Do we need to still have the core-based license for our physical WS2019 if we only deploy Client-based VMs? 

- How do we go about purchasing and applying a core-based license for our physical WS2019?

Please let me know if there is any other critical information I may need that I have missed.

Thank you in advanced for helpful insights.

TSE licenses

September 23, 2019, 1:03 am

≫ Next: Enhanced Video Renderer - render failure in RDP session

≪ Previous: Windows Server 2019 VDI Licensing

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Hello team,

I have a windows 2016 server and I want to add more other RDP sessions.

I know by default, the system has 2 simultaneous sessions and I'm looking to increase the number of sessions by the user and want to purchase another three licenses.



Does it mean I will have 05 simultaneous RDP sessions or the TSE server will not include the default 2 sessions?



Thanks for your support

Regards

Enhanced Video Renderer - render failure in RDP session

September 20, 2019, 12:42 pm

≫ Next: How to add language/IME for all users on the TS?

≪ Previous: TSE licenses

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Enhanced Video Renderer is used in my application.  It displays fine on Windows 7 thick client.  When this application runs on a Citrix server (Server 2016), EVR will not render at all, if the render window is on monitor 2 (right monitor).

Because Citrix runs on top of Terminal Services, we tried to check over RDP.  See the same symptom over an RDP connection.  Testing EVR capabilities using GraphEdit: EVR will render fine on Monitor 1 but not Monitor 2 (black window appears).  Without RDP, connecting over UltraVNC, there is no problem with EVR rendering on Monitor 2.  Another curious thing, is that if the graph is stopped, and the render window is dragged from one screen to the other, the window will render fine after the graph is restarted, so long as the window is at least 50% on the left monitor.  Seems like a rendering problem as the source filter is definitely not the issue.

Is there some reason for this to fail?  Is there any RDP configuration (or omission) that contributes to this problem.  Many thanks in advance for any knowledge on this.

How to add language/IME for all users on the TS?

September 18, 2019, 8:37 pm

≫ Next: RDS 2016 deployment over Citrix Netscaler as load balancer.

≪ Previous: Enhanced Video Renderer - render failure in RDP session

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Hello, 

I have added a language/IME using the Administrator account on the TS, but seems only Administrator has that language and IME, rest of users on the TSdoes not have that option to switch the Language/IME.

Could anyone tell me how to do this in a right way?

Thank you!

RDS 2016 deployment over Citrix Netscaler as load balancer.

September 18, 2019, 6:05 am

≫ Next: User profile disk (.vhdx) files increasing frequently

≪ Previous: How to add language/IME for all users on the TS?

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Hello,

I would like to create RDS deployment based on Windows Server 2016. Idea is to load-balance RDSH servers via Citrix Netscaler. I have some questions in regards to that deployment. 

Environment: 10 RDSH servers + 2 RDS Connection Brokers + 1 License server. All RDSH servers will be available over NS VIP. 

1. Is RDS Broker server needed if Netscaler is in front of deployment?
2. Will Citrix Netscaler use RDS broker as point to verify whether user has active session or disconnected session?
3. If there is no need to use Gateway/web interface, is it necessary to create collection?

Thank you in advance,

User profile disk (.vhdx) files increasing frequently

September 18, 2019, 12:56 am

≫ Next: Google Chrome and creating a SHA256 Cert from our internal CA for RDWEB

≪ Previous: RDS 2016 deployment over Citrix Netscaler as load balancer.

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In windows server 2012 R2 RDS farm user profile disk (.vhdx) files increasing frequently that causes lack of free space on storage location where the UPD files located. Every day approximately 10-20GB space filled on storage where the UPD locates. When mount and checking vhdx within them the amount of data is much smaller than the size of vhdx disk. Is there any way to prevent increasing UPD disks frequently or reduce/release/reclaim disk space on UPD vhdx files?

Google Chrome and creating a SHA256 Cert from our internal CA for RDWEB

August 28, 2019, 7:53 pm

≫ Next: RDS 2016 second prompt for remoteapp

≪ Previous: User profile disk (.vhdx) files increasing frequently

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Hi Guys,

Looking for some help with Chrome and RDWEB 2016 certs.

I understand that Chrome does not support SHA1 certs anymore.

So we are using windows 2016 RDS servers.

We have I internal CA server.

But I don't know how to make a SHA256 cert for RDWEB from the CA and make sure its trusted by the root CA server.

Any help here would be great!

Thxs Chris

This is the chrome error we get:

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RDS 2016 second prompt for remoteapp

September 26, 2019, 3:00 am

≫ Next: Changing Current USer´s user profile information in TS/RDP - Where are my registry keys?

≪ Previous: Google Chrome and creating a SHA256 Cert from our internal CA for RDWEB

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HI

I have deployed new RDS 2016 and share remote apps. After login through RDWeb I try to start any app and I get second prompt for credentials but there is information: The server's authentication policy does not allow connection requests using saved credentials.

I can start remote apps from another RDS on 2012 R2 from this computer without second prompt so I assume that something wrong on the RDS 2016 server. But what?

Cheers

Changing Current USer´s user profile information in TS/RDP - Where are my registry keys?

September 3, 2019, 3:34 pm

≫ Next: USB Flash Drive Redirection in Remote Desktop Services (Terminal Services) as if USB Flash Drive connected directlly in TS

≪ Previous: RDS 2016 second prompt for remoteapp

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The issue: Due to a problem, i need to change all reg keys related to all TS/RDP users

first i list the SIDs with REG QUERY HKEY_USERS and the cmd lists 12 user´s SIDs (i´m not counting well-know, _Classess keys, etc)

So i did a "for" loop, changing the proposed reg key for these 12 keys, no problem.. untill now...

So i noticed that i have several (more than 10) users logged on my TS/RDP, but they´re not listed in the USERS hive in registry

So, the problem: I need to change a reg key for all TS users, because users have no right/permission to open CMD, use regtool, etc, so I need to modify the reg keys for each individual user, but most of the users are not present in the USERS reg key

The main script is:

for /f %f in (SIDs.txt) do reg add "HKEY_USERS\%f\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders"  /t REG_EXPAND_SZ /v Cache /d ^%USERPROFILE^%\AppData\Local\Microsoft\Windows\INetCache /f

But rhe SIDs.txt was built based on availble reg keys under HKEY_USERS, but i have  several users, active, online, using the TS and they have no related reg key under USERS

So, why and more important, how can I change the Cache key for TS users??

USB Flash Drive Redirection in Remote Desktop Services (Terminal Services) as if USB Flash Drive connected directlly in TS

September 9, 2014, 5:44 am

≫ Next: Windows 10 1903 remote-app repeating keystrokes

≪ Previous: Changing Current USer´s user profile information in TS/RDP - Where are my registry keys?

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Hello Collegues.

Is there a way to redirect USB Flash Drive in Remote Desktop Services (Terminal Services) on Windows Server 2012R2 as if USB Flash connected directlly in TS? 

Now USB Flash Drive redirects as Folder (screen below) I can read, write.

But I'm looking a way to redirect USB Flash Drive in Remote Desktop Services as if USB Flash Drive connected directlly in TS (screen below).

I know such program as USB Redirector TS Edition, but it costs too much.

Are there other opportunities to do so?

Thank you!

Windows 10 1903 remote-app repeating keystrokes

June 5, 2019, 9:47 am

≫ Next: Need a solution for allowing Remote Desktop access for a limited number of users.

≪ Previous: USB Flash Drive Redirection in Remote Desktop Services (Terminal Services) as if USB Flash Drive connected directlly in TS

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Hi,

All our win 10 1903 clients, immediately after been updated from 1803 to 1903 start repeating keystrokes in remote apps. Servers are 2012 R2. RemoteFX cannot be disabled on session hosts servers since that solution causes problems to some of the apps running. Any one facing the same problem ? Any solution?

Need a solution for allowing Remote Desktop access for a limited number of users.

September 20, 2019, 9:48 pm

≫ Next: Limit users to a single RDS session across all servers in collection (Server 2016)

≪ Previous: Windows 10 1903 remote-app repeating keystrokes

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I've been searching and searching but I'm not getting all the pieces together.  Here is what I need to accomplish:

1. A VM running a modern Windows OS to run a specific application suite.
2. That VM needs to be able to handle up to 5 concurrent Remote Desktop connection actively using the application mentioned above. (The application suite is designed to be able to handle this.)
3. Users will be connecting with tablets, laptops and desktops from the local network and from external connections as well.

The application suite runs a database and is normally installed on multiple desktops with one of them being the "master" running the DB.  Maintaining the multiple desktops is less practical compared to one VM that everyone connects to.  I've seen "hack" ways to run multiple remote connections to Windows 10 and such but I'm looking to do this right.  This application suite is going to be used for the foreseeable future and I don't want to hack it together waiting for an update to break the hack.

What I am asking for is help with what I need for this use case.  I'm ok with building multiple servers (in ESXi/VMware) if needed, though I would prefer only one.  I also would really rather use a per user license since the users are regularly changing out the devices they are connecting with.  

I have downloaded and build basic VMs with the eval versions of Server 2019 Essentials and Standard.