This section is primarily for the built-in native ZHA integration + Zigbee devices for it.
If you have issues with pairing Zigbee devices to deCONZ / Phoscon then you should instead really ask for help in Dresden-Elektronik’s official support channels and community → Technical support
But before you do so I advice that you first follow these highly recommended generic best practice tips which apply to all Zigbee gateway solutions → Zigbee networks: how to guide for avoiding interference and optimize for getting better range + coverage