Network dropping on inverter
Hi,

I recently had installed an H1-6.0-E-G2-WL inverter which is connected directly to my local network via ethernet cable. This has generally been working fine in HA but on two occasions recently the link dropped. Unplugging and plugging the cable back in on the inverter side re-establishes the link. Just thought I'd ask here before I do any further troubleshooting. Any known issues, firmware updates etc?

Master: 1.53
Slave: 1.04
Manager: 1.39
Re: Network dropping on inverter
The direct LAN connection used to be occasionally flaky on the older gen inverters and that's why RS485 connection was recommended, eventually LAN support was dropped by Fox, but since Fox now support the LAN port again on gen 2 inverters I haven't heard of any issues.

That said the ethernet chipset isn't super fast, if you are using Nathan's modbus integration I would recommend not polling too fast (no faster than 8 seconds), and keep the maxreads to no more than 40 - you can find both of those settings in the config in HA under Settings, Devices & Services, click '>' on Foxess Modbus, click on the 'cog' icon, and choose advanced settings.
Re: Network dropping on inverter
Yes I've since seen an old thread on here mentioning the flakiness of the LAN interface. I am indeed using the FoxESS - Modbus integration.

The integration says it has a default Poll rate of of 10 seconds and default Max read of 100 for the LAN adapter type. I'll try increasing polling to 15 seconds first. The pain with the interface dropping is that it stays dropped until intervention so will see it helps. It's dropped twice over the last 7 days.
Re: Network dropping on inverter
paulshields wrote: Wed Jul 08, 2026 1:41 pm Yes I've since seen an old thread on here mentioning the flakiness of the LAN interface. I am indeed using the FoxESS - Modbus integration.

The integration says it has a default Poll rate of of 10 seconds and default Max read of 100 for the LAN adapter type. I'll try increasing polling to 15 seconds first. The pain with the interface dropping is that it stays dropped until intervention so will see it helps. It's dropped twice over the last 7 days.
The maxreads is likely to play a more significant role and with some adaptors it overflows the buffer - you won’t see any real detriment to reducing it to 40, but it can be less onerous on the hardware.
Re: Network dropping on inverter
ok that's good to know. I'll definitely look at reducing that as well. Thanks.
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