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Fix Guide

How to Fix USB Devices Not Recognized or Disconnecting on the UGREEN Revodok Pro 106

Device: UGREEN Revodok Pro 106 (6-in-1 USB-C Hub) · UGREEN Added

Causes

  • Insufficient power to the hub — USB devices like external SSDs, portable hard drives, and bus-powered USB microphones draw significant current. If the Revodok Pro 106 is not connected to an external PD charger and is running solely on the laptop's USB-C port power budget, peripherals may fail to initialize or drop out intermittently under load.
  • Outdated or corrupted USB controller drivers — Windows and macOS rely on the USB host controller driver to manage device enumeration. A corrupted driver cache, outdated Intel/AMD chipset driver, or a recent OS update that introduced a regression can cause USB hubs to fail to recognize devices on specific ports.
  • USB-C cable seating issues — the Revodok Pro 106's attached 30cm cable can become partially dislodged by subtle movements, especially on a laptop that sits on a lap or soft surface. A slight disconnect can cause all USB devices to vanish and reappear repeatedly.
  • USB 3.0/3.2 electromagnetic interference — the hub's 10Gbps USB 3.2 Gen 2 data lines radiate broadband noise at 2.4 GHz. If a USB 3.0 device is plugged into one of the data ports and a 2.4 GHz wireless device (mouse, keyboard) is nearby, the interference can cause the wireless receiver to lose sync and appear as a disconnect to the OS.
  • Incompatible USB device power draw — some high-power USB devices (e.g., a bus-powered 2.5" external HDD drawing 900mA+ or a USB DAC pulling 500mA) can exceed the port's per-port current limit. The Revodok Pro 106's USB-A ports are rated for 900mA each (USB 3.2 spec), and exceeding this can trigger the port's overcurrent protection, disconnecting the device and potentially the entire hub.

How to Fix

  1. Connect the UGREEN Revodok Pro 106 to an external USB-C PD charger (65W or higher). Plug the charger into the hub's dedicated PD input port before connecting the hub to the laptop. This provides the hub with a dedicated power supply, ensuring all USB ports can deliver their full 900mA per port without competing with the laptop's power budget.
  2. Fully reseat the hub's USB-C cable into your laptop's port. Disconnect both ends (hub from laptop, all peripherals from hub), wait 10 seconds, and reconnect with a firm push until you feel the cable click into place. Avoid wiggling the connection — the attached cable is strain-relieved but a side load can break the electrical contact.
  3. Update your USB controller drivers and chipset drivers. On Windows: open Device Manager, expand "Universal Serial Bus controllers," right-click each "USB Root Hub" and "Generic USB Hub," select "Update driver," then "Browse my computer for drivers > Let me pick > USB Hub" — select the latest Microsoft driver. Then install the latest chipset driver from your laptop manufacturer's website (Intel/AMD). On macOS: simply install the latest macOS system update, which includes all USB stack fixes.
  4. Power cycle the hub: disconnect all devices from the hub, then unplug the hub from both the laptop and the PD charger (if connected). Wait 60 seconds, then reconnect the PD charger first, then the hub to the laptop, and finally reconnect your USB devices one at a time. This clears any latent charge on the hub's internal capacitors that may be causing an enumeration lock-up.
  5. Check USB device power requirements: if you are using a bus-powered external hard drive (2.5" HDD/SSD), try connecting it to the USB-C data port (10Gbps) instead of the USB-A port — the USB-C port can supply more current. Alternatively, use a powered USB hub downstream of the Revodok Pro 106, or connect power-hungry devices directly to the laptop.
  6. Separate USB 3.0 devices from 2.4 GHz wireless receivers. If a USB-A port is used for a wireless mouse/keyboard dongle, avoid plugging a USB 3.0 external drive into the adjacent port. The broadband noise radiated by USB 3.0 over the 2.4 GHz band can swamp the wireless receiver. Use a USB 2.0 extension cable for the wireless dongle to move it away from the hub, or connect the dongle to a USB 2.0 port on the laptop directly.
  7. Disable USB selective suspend in Windows: go to Control Panel > Power Options > Change plan settings > Change advanced power settings. Expand "USB settings" > "USB selective suspend setting" and set it to "Disabled" for both battery and plugged in. This prevents Windows from cutting power to the hub's USB ports during brief idle periods, which can cause mounted drives to disappear.
  8. As a last resort, perform a SMC/NVRAM reset on Intel Macs (shut down, press Control+Option+Shift+Power for 7 seconds, then release and power on) or reset the UEFI settings on a Windows PC (hold F2 during boot to enter BIOS/UEFI, select "Load Optimized Defaults," save and exit). This resets the host controller's power management state and often resolves enumeration issues that survive OS-level troubleshooting.