WiFi has gone off on our system yesterday morning ,and I have no idea how to reset the system ,so I don't know whether the system is working correctly or not.Weather is lovely and sunny . Dongle is flashing all the time, and portal says we are offline?
I would wait until there is no solar and just isolate and re-power the inverter to force it to reset the dongle. Or you might find that the dongle has an active access point and log onto the dongle directly. (if its reset for any reason try admin admin as user and password)
See page 2 of this pdf
https://kb.givenergy.cloud/article.php?id=1
I logged into mine as I wasn’t comfortable with having the Wi-Fi username and password set to default. Not really much anyone can do if they did get on, but perhaps stop the device from talking to the portal I guess.
It won't hurt to pull the dongle out, wait a couple of minutes, then re-insert it, to reset it. No need to power down the whole inverter.
TX200 I think you'll find if you connect to the AP you have access to anything on the local network! It's definitely worth changing the password and making sure it's using WPA2-PSK as shown (my installer did not do any of this)