Mark turned to his phone, tethering it to the PC to get a temporary lifeline. He navigated to the manufacturer's website of his USB adapter. The support page looked like it hadn't been updated since 2017. The latest driver listed was for Windows 10, version 1903.
| Symptom | Likely Cause | Solution | |---------|--------------|----------| | Driver fails with Code 52 | Unsigned driver / Windows 11 22H2+ stricter enforcement | Use the latest driver signed after June 2021. Try method 2 temporarily. | | Adapter disconnects randomly | Power management | Device Manager → Network adapter → Properties → Power Management → Uncheck “Allow computer to turn off this device.” | | Low speed (＜100 Mbps) | Wrong band (2.4 GHz) or USB 2.0 port | Force 5 GHz: Adapter Properties → Advanced → Preferred Band → Prefer 5GHz. Use a USB 3.0 port (blue). | | No adapter detected after sleep | Driver fails to resume | Disable Fast Startup in Windows Power Options. | Mark turned to his phone, tethering it to
Verdict
Realtek 8811CU driver 1030.45.0421.2022 or newer The latest driver listed was for Windows 10, version 1903