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Appendix 
FAQ 
Q1: The    LEDs are off when both P3 and PA7 are powered on. What should I do? 
A1: Try the following methods: 
  Verify that P3 and PA7 use a same electric meter. 
  Press the Pair button on P3, and its    LED blinks. Within 2 minutes after pressing Pair button on P3, press 
the Pair button on PA7, and its    LED blinks. Wait until both LEDs turn solid on. 
  Reset P3 and PA7. Method: hold down the Pair/Reset button for 6 seconds to restore factory settings. 
Q2: My  wireless router does not  support WPS, or  WiFi clone  fails. What should I do  if I want to change the 
WiFi name and password of PA7? 
A2: You can log in to the web UI of PA7 to change the WiFi name and password. 
Method: 
①  Connect your computer to PA7 wirelessly or via an Ethernet cable. 
②  Start a web browser, and visit http://plc.tendawifi.com.   
③  Log in to the web UI with default login password admin, and go to Wi-Fi Settings page to change the WiFi 
name and password. 
Q3: I cannot access the internet, but the internet status on web UI of PA7 is normal. What should I do? 
A3:  Check  whether  your  wireless  router  enables  some  restriction  function,  such  as  MAC  address  filtering, 
parental control, PPPoE server, and so on. 
Q4: How to reset P3 or PA7 
A4: After the device is  powered on for about 20 seconds, hold down the  Pair button for 6 seconds. When the 
  LED indicator turns off, P3 or PA7 restores to factory settings successfully.