Connection problem to an RDS broker server via a Dell Wyse 5070 configured through WMS

Hello,

I am posting a topic on this forum because, not having found any similar existing topics, I find myself stuck in a situation that I do not understand and that has been going on for many weeks now.

I am trying to create a WMS configuration for Wyse 5070 ThinOS so that they can connect to an RDS farm controlled by a broker.

I have recently set up a similar configuration for another client, and it is working very well.

I configure the broker's address and choose the Microsoft Remote Desktop Services broker as the default broker, along with all the associated required settings. Additionally, I set the connection type to "Authenticate with the broker" in the connection experience.

After restarting the Wyse device, I log in with the credentials of my AD account, which is authorized to access the RDS farm. But after a long wait on this initial login screen, the following error message appears: "SSL Connect error." In the system logs, the message states: "Failed to connect [Rds] to broker "xxxxx.xxx.local". Error => Error: SSL Connect error."

Can you help me with this issue?

Additional information:

Firmware version used: ThinOS_2303_9.4.1141.pkg-v9.4.1141

WMS Version: 4.0 HF3 550 Standard License

Thank you in advance for your assistance.

Best regards.