USB Device Keeps Disconnecting and Reconnecting Windows 11 Fix [2026]
Quick Answer: USB disconnecting due to power saving or insufficient power. Disable USB selective suspend for all hubs and use powered USB hub.
Fix
Disable USB Suspend
Device Manager → Universal Serial Bus controllers → USB Root Hub → Properties → Power Management → Uncheck "Allow computer to turn off"
Update USB Drivers
Device Manager → Universal Serial Bus controllers → Update all drivers
Use Powered Hub
For high-power devices, use USB hub with external power.
Check Power Supply
Weak PSU can cause USB power drops.
How Againly Helps
Againly runs check_peripheral_usb to detect USB stability issues.
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