moritzheppert

Actually the same error occured again at 11:32.35.

Devolutions.NowClient.NowClientException: NOW-proto worker has been terminated.

at Devolutions.NowClient.NowClient.ThrowIfWorkerTerminated()

at Devolutions.NowClient.NowClient.SetRdmAppNotifyHandler(RdmAppNotifyHandler handler)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.SetRdmAppNotifyHandler(RdmAppNotifyHandler handler)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.StartAndWaitForRdmReady(Int32 timeoutSeconds, CancellationToken cancellationToken)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.Jump(Connection targetConnection, JumpedConnectionResult jumpedConnectionResult)

Devolutions Agent is at Version 20263.1.0

RDM is 2026.3.15.0 on both stations.

Could it be related to switchting the network connection?

Hello,

Thank you for the additional details and the log screenshot.

The log shows that the Devolutions Agent on your PAW is version 2026.1.0. A fix for the “NOW-proto worker has been terminated” error was released in Devolutions Agent 2026.2.4. Please update the Agent on the PAW to the latest version, then disconnect and reconnect the RDP session from your notebook to the PAW.

If the error comes back after the update, please send us:

1. The exact time it happened

2. The Devolutions Agent logs from the PAW (these are separate from the Remote Desktop Manager logs)

3. Whether the same user had more than one RDP session open to the PAW at that time

In the meantime, disconnecting and reconnecting the RDP session to the PAW should clear the error when it appears.

Best regards,

Hey @Carl Marien,

thank you for your reply. Actually the PAW has no internet connection so maybe thats why i didnt received any notice about an avaible update for the devolutions Agent. I just installed Version 2026.3.1 and reconnected the rdp session. I will report back if the issue persists.

Best Regards

Hello Carl, it just happened again at 08:43 but for the whole day there is no log entry on the paw yet.

Log from Client Notebook:

Devolutions.NowClient.NowClientException: NOW-proto worker has been terminated.

at Devolutions.NowClient.NowClient.ThrowIfWorkerTerminated()

at Devolutions.NowClient.NowClient.SetRdmAppNotifyHandler(RdmAppNotifyHandler handler)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.SetRdmAppNotifyHandler(RdmAppNotifyHandler handler)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.StartAndWaitForRdmReady(Int32 timeoutSeconds, CancellationToken cancellationToken)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.Jump(Connection targetConnection, JumpedConnectionResult jumpedConnectionResult)

The PAW has the 26.1.0 Devolutions Agent installed.

Thank you for your support.

Hello,

Thank you for reaching out regarding this matter.

Certificate-based authentication through ADFS should work in Remote Desktop Manager if you open your vCenter URL in a Website entry. I have not been able to test this on my side, since we do not have this ADFS setup in our lab.

Could you please try the following?

Create a Website entry pointing to your vCenter URL.

In the entry properties, go to General > Settings and make sure Ignore certificate authentication is unchecked.

Open the entry. When ADFS requests a certificate, Remote Desktop Manager should ask you to select one from your personal certificate store.

Please let me know whether it works. If it does not, please send me your Remote Desktop Manager version and a screenshot of what you see at the ADFS step.

Best regards,

Hey @Jacob Lafrenière,

actually you are totally right. When creating a Webentry with jump settings it works flawlessly. But i talked about the various dashboards like the "native" VCenter Management Dashboard which is built in RDM.

But thank you anyway.

Best Regards

Moritz Heppert

Hello,

Thank you for the details and the log excerpt.

This error means RDM on your notebook lost its link to Devolutions Agent on the PAW, so every new jump in that RDP session fails.

To clear it, disconnect the RDP session to the PAW and connect again.

Since you are already on the latest versions, we would like to look into this with our development team.

Next time it happens, please send us the Agent logs from the PAW and the exact time of the error.

Please also let us know if the same account is ever connected to the PAW in more than one session.

Finally, does the error tend to appear after the session was idle, locked, or reconnected?

Best regards,

Hey Carl @Carl Marien

sure i will provide the log if the error happens to appear again.

I use multiple Jump Sessions via the same PAW but never open multiple session to the paw from my notebook.

Honestly i cant exactly pin point when it happens but i would say it happens after unlocking my windows session or after a idle period of rdm.

I dont know if it matters, but we use Yubikeys for Login to the Notebook and the PAW.

Best regards,

Moritz Heppert

I got curious if there is a way to use our internal issued certificates for the login via adfs to our vcenter instance.

We only use this login process for our admin accounts and i cant find a way to implement that to rdm.

We currently use RDM 2026.3.12 on our "normal" notebooks and the same version on our PAW.

From time to time the following error appears and stops all new connections from working:

"jump to connection failed: NOW-proto worker has been terminated."

There dont seem to be any related information in the application logs of the RDM running on the PAW.

But the application Log of our notebooks appear to have the following entrys:

[08.10.2026 09:07:27 - 2026.3.12.0 - 64-bit] suppressed error: Devolutions.NowClient.NowClientException: NOW-proto worker has been terminated.

at Devolutions.NowClient.NowClient.ThrowIfWorkerTerminated()

at Devolutions.NowClient.NowClient.SetRdmAppNotifyHandler(RdmAppNotifyHandler handler)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.SetRdmAppNotifyHandler(RdmAppNotifyHandler handler)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.StartAndWaitForRdmReady(Int32 timeoutSeconds, CancellationToken cancellationToken)

at Devolutions.RemoteDesktopManager.Business.NowAgent.NowAgent.Jump(Connection targetConnection, JumpedConnectionResult jumpedConnectionResult)