☆ Identify Wi-Fi connection Issues

You may have issues with the Wi-Fi connection between your inverter and your modem/router. As long as the other indicators on the inverter show “Normal” or “Generating”, a faulty Wi-Fi connection does not affect the electricity production or electricity sold back to the utility company.

There are several potential reasons for Wi-Fi issues:

A common reason is that the modem/router has been replaced forgotten to set up the inverter to the new network, which allows it to communicate with the monitoring platform (www.semsportal.com) and the SEMS Portal APP). Another common reason for Wi-Fi issues is a weak Wi-Fi signal which is often due to the distance between the inverter and router. An unstable internet signal from the modem/router could also cause Wi-Fi issues.

The easiest way to identify Wi-Fi issues is to check what the Wi-Fi indicator on the inverter is showing. It is a graphical explanation what the Wi-Fi indications mean and their associated error message.

For residential grid-tied inverters:

For C&I grid-tied inverters:

For hybrid inverters:

In case there is no continuous Wi-Fi connection with the inverter, we recommend resetting the Wi-fi connection by starting the “Wi-Fi reload operation”. With the “Wi-Fi reload operation the current Wi-Fi settings on the inverter will be reset to factory settings and enable you to set up the Wi-Fi connection from start.

The instructions to use the “Wi-Fi reload operation” and reset the connection between the router and the inverter. Make sure to have the router password at hand and keep the mobile device used for the set up within 3 meters from the inverter during the setup.