Issue Description
External keyboard or mouse does not respond or intermittently disconnects.
Common Causes
- Bluetooth pairing issues
- USB power problems
- Corrupt input settings
Step-by-Step Solution
Step 1: Check Connection Type
- USB: try another port or cable
- Bluetooth: verify battery level
Step 2: Re-pair Bluetooth Devices
- System Settings → Bluetooth
- Remove device
- Restart Mac
- Pair again
Step 3: Reset Input Settings
- Restart Mac
- Disconnect all peripherals except keyboard/mouse
Step 4: Test in Safe Mode
- Determines software vs hardware cause
Explore Further
- Reset SMC (Intel Macs)
Prevention & Best Practices
Avoid low-quality USB hubs.