The Sony UWA-BR100 was designed exclusively for use with Sony Bravia TVs and Blu-ray players. Official Windows 10 drivers do not exist, and Sony explicitly states that the device will not work on computers.
drivers on Windows, as the adapter is built on that chipset. Sony UWA-BR100 Review: A Relic for Specific Sony Hardware Sony UWA-BR100
Step 6: Run the installer. Follow the prompts. sony usb wireless lan adapter uwa-br100 driver windows 10
If you are using the adapter for its intended purpose on a Sony BRAVIA TV or Blu-ray player:
Try Different USB Ports: Use a port directly on the motherboard (back of the PC) for more stable power. The Sony UWA-BR100 was designed exclusively for use
Step 3: Go to the Compatibility tab.
Title: Bridging the Gap: Installing the Sony UWA-BR100 Wireless LAN Adapter on Windows 10 Sony UWA-BR100 Review: A Relic for Specific Sony
Windows 11 has even stricter driver requirements. The generic Ralink driver method (Method 2) does work on Windows 11, but you must disable Driver Signature Enforcement each time you install it. After installation, the adapter will continue to work across reboots.