My Fronius inverter has stopped uploading to PVOutput consistently during the day.
It would start off ok but then stop and most often upload the rest after sunset. I had an instance where it wouldn’t upload at the end of day.
Interestingly enough the upload to SolarWeb is not impacted!
There are a few things I can think off that might have caused the issue.
In order closest to the date; the inverter was powered down for electrical work; joined NBN; new modem before joining NBN.
Is this an instance of; have you tried turning it off and on again?