SolarRiver 4000 - Network connection issue

oldskoo1

Hi all, 
I realised my solar data has not been posting to the web since November! Oooops. 
Its a River 4000TL-D - it normally posts to the Samil Portal and I use to login to the web interface or the app on my phone to check things. 
I'm not sure what has changed. When I check my home network I can see that the GainSpan device (the Solar River inverter) has been connected for months. And it transmits data, so it must be uploading, its uploaded more than its downloaded. 

Is anyone able to help? It has been working fine for years and I'm not sure where to start here. As I mentioned its connected via WIFI ok, at least as it seems. I can't find anything I can change in the portal. 

It is working, plenty of generation today, about 20kW. 
Any ideas?
Thanks all