Disabled by default. William Unicom is the mainstream NAS brand in the market. After updating the firmware, the brand will cause the port to fail to open. However, after updating the firmware, automatic routing configuration is disabled by default, resulting in the router port forwarding failure or failure to open. QNAP refers to Weilian Unicom Technology Co., Ltd., which is one of the few multinational enterprises in Taiwan Province Province, China that have gained world recognition with commercial servers. The sales volume of its NAS product line has been in a leading position in the European and American markets.