Description

I have successfully followed the standard NVIDIA DGX Spark installation guide for NemoClaw. While I can interact with the sandbox via the OpenClaw TUI without any issues, I am unable to access the OpenClaw Dashboard UI.

When attempting to visit the dashboard URL on the same machine where NemoClaw is running, I encounter a "This site can’t be reached" (ERR_CONNECTION_REFUSED) error.

Reproduction Steps

• Run:

curl -LsSf https://raw.githubusercontent.com/NVIDIA/OpenShell/main/install.sh | sh
git clone https://github.com/NVIDIA/NemoClaw.git
cd NemoClaw
sudo ./scripts/setup-spark.sh

./install.sh

• Created and started a sandbox.
• Verified that chat works via OpenClaw TUI.
• Attempted to access the Dashboard via the provided URL (including the specific port and the generated authentication token).
• Result: The page fails to load entirely with a connection error.

Environment

Operating System Ubuntu 24.04.3 LTS (Noble Numbat)
Node.js Version v22.22.1
Docker Version 28.5.1, build e180ab8
NemoClaw Version v0.1.0
Hardware Asus Ascent GX10

Debug Output

Logs

Checklist

• I confirmed this bug is reproducible
• I searched existing issues and this is not a duplicate