Sorry, i should have replied sooner. I've tried different browsers on a PC and tried different phones.
I ended up changing the SSID and password to the old one and it solved the connectivity issue.
I still have the empty page but at least i'm producing data
I've tried removing the dongle for awhile and it didn't work. Resetting the inverter also didn't work. I've tried to change the SSID to the previous one and it didn't work (with the tests i've made with the dongle and the configuration page, maybe something was actually changed :( )
i have a fox ESS F6000 inverter with a Wifi dongle. The Wifi connection was working until a few days ago when the Wifi amplifier stopped working. I had to buy a new one and the SSID is now different. I went through several guides on how to set up Wifi.