Configuration of datalogger SM model polycab inverters 5g series

in this video , we can see how to configure datalogger of polycab inverter 5G series SM model.
Things to consider while configuring datalogger,
1.Make sure wifi signal of router should be minimum 3 point when we stand near by the inverter.
2. Make sure there should not be complex characters or special characters and spaces in wifi router user name and password
3. Make sure wifi router is configured in 2.4ghz bandwidth