I have a Hikvision Version 5.5.0 build 170725 for the DS-2CD2142FWD-IWS 2.8 mm WIRELESS dome camera. 
  
Facts: 
 It has a 12 volt 2A power supply attached. 
  
  
 It has settings as follows: 
 IP Address LAN: 192.168.0.188 
 IP Address WLan: 192.168.0.211 
 PW: 12345scw 
  
 ONVIF: 
 User: admin 
 PW: 12345scw 
  
  
 Here is the problem: when the ethernet cable is attached to a non-PoE port and to the camera, everything works great and the wireless IP address is active 192.168.0.211. However, when I unplug the ethernet cable, the camera disconnects from the network and the network cannot find the IP address when we ping for it. 
  
 Furthermore, the camera works wirelessly when the ethernet cable is plugged in, but does not work wirelessly when the network cable is unplugged from the camera. The wi-fi gets dropped when the cable is unplugged. 
  
Can anyone help me with this?