Visitor III

Question

HTML5 RDP Windows 10/Server 2016 Connection Terminated

Forum|Forum|9 years ago
June 1, 2017
15 replies
37049 views

I can fill credentials (username/password), but all I get is error that connection is terminated

Anybody any ideas?

Connection to Server 2012 R2/W7/W8.x works fine from web VPN

MattM

New Member

I had this issue when the Network Level Authentication settings didn't match between the server and the HTML5 RDP connection. On Windows I set RDP security to "Allow connections from computers running any version of Remote Desktop (less secure)" and set the HTML5 RDP shortcut to use Standard RDP Encryption.

That allowed me to connect.

scerazyAuthor

Visitor III

Network Level Authentication for Remote Desktop Services Connections is already turned OFF!

That is the first thing I did check!

The settings (wording used) you mentioned is for Windows Vista/7/2008

For Windows 8/8.1/2012/10/2016 it is (untick):

Allow remote connections only from computers running Remote Desktop with Network Level Authentication (recommended)

as per: http://www.lazywinadmin.com/2014/04/powershell-getset-network-level.html

While it works fine connecting to Server 2012 R2, it does NOT connect to Windows 10/Server 2016

Seb

abeggled

New Member

Connection to Windows 10/Server 2016 works for me with the following configuration:

Windows:

[ul]

NLA activated[/ul]

Bookmark:

[ul]

Host: xxx.xxx.xxx.xxx (only IP-Adress works for me)

Username: leave empty

Password: leave empty

Security: Allow the server to choose the type of security[/ul]

Drawback: You loose SSO

bhwong

New Member

Under Security for RDP, you have to select Network Level Authentication and enter your username to be saved. I didn't tick the recommended NLA in Windows Server 2016 as well, but it will only connect when security is set to NLA.

1.jpg

Cohmert

New Member

Hello, i have the same issue.

I could solve it but i am not satisfied.

The problem with connecting only affects win10 clients. I have serveral clients where the connection settings are set to:

[ul]

Type:rdp

Host: hostename or IP - both works

Port: 3389

Username: mydomain\

Passwort: empty

Keyboardlayout: German

Security: Standard RDP encription[/ul]

But somehow, on a few clients it just wont work. When the user tries to connect, the user will get displayed "connection closed" immediately.

I tried to set it to NLA with the same result. All win10 clients have the NLA box unchecked in the remote connection settings.

Then i found out, that when i use the QuickConnection button and set it all to RDP with NLA and leave the credentials empty, i could connect to the client. The NLA box ist still unchecked and should work without it

(As long the user is allowed and member in the Remotedesktop user group on the client)

[ul]

The i changed the Portal settings to NLA and left the user/password section empty. No success

The i changed the Portal settings to NLA and filled in the name of one of the allowed users without the mydomain\ part. Only the username. Password still empty. Works[/ul]

The NLA boxes are unchecked on all clients. All clients on same Patchlevel and winver.

Does anybody has a sugesstion why it is different on the clients and why some need the NLA, even if it is deactivated on the client.

thomasevig

New Member

Cohmert wrote:
Hello, i have the same issue.
I could solve it but i am not satisfied.
The problem with connecting only affects win10 clients. I have serveral clients where the connection settings are set to:
[ul]
Type:rdp
Host: hostename or IP - both works
Port: 3389
Username: mydomain\
Passwort: empty
Keyboardlayout: German
Security: Standard RDP encription[/ul]
But somehow, on a few clients it just wont work. When the user tries to connect, the user will get displayed "connection closed" immediately.

I tried to set it to NLA with the same result. All win10 clients have the NLA box unchecked in the remote connection settings.

Then i found out, that when i use the QuickConnection button and set it all to RDP with NLA and leave the credentials empty, i could connect to the client. The NLA box ist still unchecked and should work without it
(As long the user is allowed and member in the Remotedesktop user group on the client)

[ul]
The i changed the Portal settings to NLA and left the user/password section empty. No success
The i changed the Portal settings to NLA and filled in the name of one of the allowed users without the mydomain\ part. Only the username. Password still empty. Works[/ul]
The NLA boxes are unchecked on all clients. All clients on same Patchlevel and winver.

Does anybody has a sugesstion why it is different on the clients and why some need the NLA, even if it is deactivated on the client.

thank you so much!!!

i've been searching for this for so long , my client couldn't work with

ForticLient , therefore had to solve this somehow!!

I'm very thankful

gguilmette

New Member

I have found that setting the bookmark security option to "Let Remote Server Decide" helps in this situation. I've not dug around in the configurations enough to know if the other secure options possibly require a domain certificate or other handshaking requirements.

scerazyAuthor

Visitor III

While it works on current 6.0.4 when connecting to Server OS, it NO LONGER works if connecting to Windows 10 CLIENT (tested connection to 1607, LTSB 2016) machine

No matter what settings are used, I always end up with

Connection closed

Hence the few users that used to be able to connect to they workstation, can no longer do it Seb