If a monitor connected to your Type-C Pro Hub with Ethernet shows no signal, try these steps:

• Try a different HDMI-to-HDMI cable, version 1.4 or higher.
• Go to System Settings > Displays and click Detect Displays (hold the Option key on Mac).
• Test the monitor with a direct connection to confirm the monitor works.
• Disconnect and reconnect the adapter.
• If you have a base model M1 or M2 MacBook, it is limited to one external display. Disconnect any other external monitor and try again.

If the problem continues after these steps, submit a support request.