Home Assistant can not discover Blue Series 2-1 switch

I am running Home Assistant ZHA version 2023.11.3 with Nortek - Zigbee USB Dongle (HUSBZB-1). Home Assistant can not discover the Zigbee Blue Series 2-1 switch however. I reinstalled the Zigbee integration and restarted the Home Assistant a few times but no luck. I would very much appreciate any suggestions on how to try to fix this. Thank you!

Is the switch flashing blue (pairing mode)? If not, press the config button 3x in quick succession.