This can be reverted by operating the CLIP STUDIO TABMATE button.

Symptom

When both your PC and CLIP STUDIO TABMATE are in sleep mode, CLIP STUDIO TABMATE will sometimes enter pairing mode if it reverts from sleep mode before the PC does.

*In pairing mode, the LED on CLIP STUDIO TABMATE will blink red and blue.

*If your PC reverts from sleep mode first, your connection will automatically be restored.

How to avoid this.

If you operate any button besides the CLIP STUDIO TABMATE button, it will revert to the mode used prior to entering sleep mode.