Sometimes, a dock will supply power and USB devices (via USB-C fallback) but not the monitor or Ethernet. The Control Center will show "No devices connected." This indicates the PCIe negotiation failed. The fix often involves power-cycling the dock while the Control Center is open.
The most common Reddit support thread involves the app saying "Thunderbolt software is not installed on this system" despite the driver being present. This usually requires reinstalling the Intel Thunderbolt driver pack in a specific order (driver first, then the UWP app from the Microsoft Store).
In the modern PC landscape, few ports are as simultaneously celebrated and misunderstood as the Thunderbolt port. On the surface, it looks exactly like a USB-C connector. Under the hood, however, it possesses the raw bandwidth (40-80 Gbps) to drive 8K displays, external GPUs, and blistering-fast SSDs. But with great power comes great responsibility—and significant security risks.