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Good day @Eurard I have attached photos of my progress so you can have an idea your guidance will be wonderful. And the data logger stipulates that it is offline as well.

Good Sir @mafiose13 Would you be so kind to advise me as I'm struggling with WIFI dongle i bought one for my FiveStar Hybrid Solar inverter 3000w/3000KVA I have manual rewired my RJ45 plug as per @Eurard posts regarding wiring the wifi dongle can i please have your detail if i can kindly forward you my connection and progress my WIFI dongle switches on and i have connected it to my 2.4Gz wifi network and all the LED lights come one except for the DATA light i belive im strugleing with the communication wirers TX , RX .

Good day @Eurard Thank you for your contribution to this topic, there are many people in the country struggling with this Data Logger for their inverters I have a FiveStar 3000W Hybrid Inverter with the same problem and thanks to you I had the Wifi data logger switching on but i'm struggling to get the Data port light on the Wi-Fi data logger so that communication can be sent through to the Wifi Logger but i also have noticed that my +Vcc is on a different pin on my inverter port. Summery I struggling to get the communication trough. Your Help will be much appreciated. 🙂 Kindly forward me your Email so that I can send you the photos of the connections.