Solution:
1 : Open your FusionSolar App and go to "My Account" (Right bottom isde of teh App).
Open the icon with the "House + Sun + Huawei".
2 : This will bring you the FusionHome App with 1- Wifi icon, 2 - Device, 3 - Toolkit. Now select: 2 - Device.
3 : You should now see your Sun2000 system if it is correctly connected to your WiFi. Select it and log in !
If you do not see your Sun2000 system then use option 1 - Wifi first to connect it.
Important : When you log in; please select "installer" and not "user" because installer gives more options.
4 : You could be prompted once logged in for a software upgrade because your system has old software.
If this is the question then say "yes" and let the device download the latest software, which was in my case SPC333.
This is the latest software version. If you are not prompted. Use this App to download the latest package using option 3 - Toolkit.
Once downloaded the software will install itself on the inverter (Sun2000 system) at daytime if it is night it will postpone the installation until daytime when enough power is available.
So be patient if you have to wait for one night extra i_f01.gif
5 : This solved the problem for me since this new software works well with the FusionSolar changes that were implemented recently.
Extra only if needed:
If you do not yet have a connection between your inverter and the FusionSolar portal then follow below steps too:
In the same App and logged in again as "Installer" go to the "Management System Configuration" option and check the settings as below. This should allow you to reconnect to the FusionSolar portal again.