Inquiry Regarding Connection Issues Between NVIDIA Sync and DGX Spark

Accelerated Computing DGX Spark / GB10 User Forum DGX Spark / GB10
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Hello,

I am Younghwan Choi, a researcher on the Development Team at QuantumNexus, currently participating in the NVIDIA Inception program.

I have a question regarding the use of DGX Spark and NVIDIA Sync.

Our DGX Spark is currently operational and configured to be accessible only within the company’s internal network (intranet), using a personal PEM key for connection.

After installing the NVIDIA Sync application, I attempted to connect to the Spark cluster through the app. Despite accurately entering all required connection details, a connection error occurs.

I would like to know if this error is specifically due to the security setting that restricts DGX Spark access only to the company’s internal network. Please note that the attempt to connect via the NVIDIA Sync app was also made from within the company’s internal network.

If there are any other potential causes for this connection failure, I would greatly appreciate it if you could provide some insight.

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Using the NV Sync UI you cannot configure a connection that doesn’t use the machine username and password. You can use the nvsync CLI tool to create your own config entry to use existing config aliases. You are free to try it out, we will work to improve our documentation on how to use the CLI tool in the meantime

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I am encountering issues as well that may be related to the Nvidia Sync app triggering mDNS hostname conflicts that I documented in a separate post. Not sure if it applies in your case, but for me the only work around is to reboot the Spark(s) and not use the Nvidia Sync app and instead ssh in directly to the machine for the time being.