Sometimes the hardware is fine, but the Windows service managing it is stuck.
Windows has a built-in tool that can sometimes detect hardware loops automatically. device manager flashing
If your Device Manager is constantly flashing, blinking, or refreshing, it’s usually because Windows is detecting a hardware change. Essentially, a device is repeatedly connecting and disconnecting, forcing the system to re-scan its entire hardware list. Sometimes the hardware is fine, but the Windows
Because the list is refreshing, it can be hard to spot which device is flickering. Here is a trick to catch it: Sometimes the hardware is fine
: In some cases, Ethernet or Network Discovery settings configured to check status too frequently (e.g., every second) can cause the entire device list to refresh. Recommended Troubleshooting Steps Fix Flashing Device Manager & Beeping Speaker Issue