Hi, Recently did a reconfiguration of a SolarEdge SE2200H for a customer to enable modbus tcp and the sunspec protocol. (solaredge was updated to the latest firmware also) The cerbo gx did find the inverter but the communication seems very unstable. Every few minutes, sometimes seconds the communi…

The Modbus TCP connection between the Solaredge and the Victron has been running smoothly for two days now. The amount of generated energy in the Solaredge app matches what’s displayed in the VRM. It appears that a bug related to Modbus communication crept into one of Solaredge’s latest firmware upd…

And to think, it took a victron forum/staff to find the issue with another vendor’s gear. Who else would have done that :slight_smile:

I also made a se ticket in the Netherlands and guess what, the solved it without further intervention. See there answer below.. Thank you for your patience. The inverter firmware has now been successfully downgraded to version 4.22.44, as requested. This should help mitigate the Modbus communicati…

I’ve received a message from Solaredge. They will fix this bug in a new firmware update, so they acknowledge there’s a bug in the latest firmware. However, they are unable/unwilling to provide a date for when the fix for this bug will be incorporated into the new firmware.

Hello, SolarEdge tech here - it’s not that we don’t want to provide a specific date or anything - it’s just that one hasn’t been released yet. Regarding feedback, it was provided. I have read the thread as it was mentioned in a case I worked on. As of now, I am downgrading the firmware of systems, …

I contacted SolarEdge support to ask for a downgrade but they offered the new version 4.24.9 (not officially released yet). Unfortunately the connection is still unstable, it still disconnects. It does seem a little more stable though. if I remember correctly it was not allowing to reconnect befo…

Hi all @Dimitar.S , thanks for your response. Appreciated! @ all, today we released Venus OS version v3.66, which includes a fix related to the communication between the Solar Edge and the Victron GX. In more detail: One step in the initialization (retrieving a certain Modbus register from the S…

I updated but now it doesn’t connect at all… still on SolarEdge version 4.24.9 I can’t rule out if SolarEdge support did something wrong though. Correction, after a few minutes (pretty long no?) it connected… for about 30 seconds. Hopefully SolarEdge comes through and downgrades my inverter.

Hi @WEHA , I already took a look, and it seems like the same issue we found last time, that at times the PV-inverter is just not responding on our modbus queries. I would like to try something else, with your permission. I want to bypass the new initialisation code that was added in Venus 3.60, tha…

Solaredge communication dropping every few minutes

Q&A and troubleshooting

Arn0uDz 14 September 2025 08:02 107

Thanks for the info. Raised a ticket with SolarEdge asking for a downgrade.

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Solaredge communication dropping every few minutes

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