There are some different reasons why Equalizer will not connect to WiFi.
A WiFi network is typically on either 2.4 GHz, 5 GHz or 6 GHz. Higher frequencies mean higher speed, but also lower coverage area. Equalizer uses the 2.4 GHz band, which provides the best range and penetrates better through obstacles such as walls and floors.
The solution is to create a network that is locked to 2.4 GHz, and use this for Easee Charger and Equalizer. Most modern home hubs allow you to create more than one network, so you can have both a 2.4 GHz and a 5 GHz network at the same time.
The fuse cabinet is too small
There are some areas where the router/access point is in the same cabinet as the smart meter. When the Equalizer and the router are too close, it can prevent the Equalizer from properly connecting to the WiFi. For example, within the same metal cabinet. The solution is to place the Equalizer at least 30 cm away from the router/access point.
Obstacles are blocking the signal
In many homes, the fuse cabinet is in a basement surrounded by concrete walls, while the garage where the charger is located is often many meters from the house. In such cases, you may have poor coverage conditions. In both cases the simplest solution will be to extend the range of the network with a network amplifier. Alternatively, you can use an adapter to extend the supplied cable and place the Equalizer somewhere with better coverage than inside the cabinet.