Laptop dock powers monitors but no USB devices

Scenario

A USB-C dock powers displays, but keyboard, mouse, and Ethernet through the dock are dead.

Recommended Resolution Path

1. Verify the dock firmware and host USB-C/Thunderbolt drivers are current.
2. Check whether the port supports full data lanes or only display alt mode.
3. Test the dock with a different cable and power adapter wattage.
4. Review device security policies that may block new USB peripherals.

Technician Notes

Confirm the business impact, document the root cause, and capture any preventative follow-up in the PSA or client knowledge base.