Signal overall very good but sometimes missing

[dewi-ny-je]

The ZB signal strength for all my inverters is good, -29 dBm plus-minus a couple of dBm.

Yet, several times during the day the signal is missing and the inverters appear offline for a short period. Not all inverters at the same time, to be clear, just some. I have 6 in total.
I have various other zigbee devices at home, could this impact reception? like signals colliding? I guess it should be WAY less common than I experience, given the short duration of the ZB packets.

Has anyone experience with solutions to this problem? I think I could maybe even change the ZB channel used by ECU, at least I think I saw something similar some time ago in the hidden pages of the web gui.

[HAEdwin]

The placement of the ECU is very important. The meter cupboard is usually not a good place.

I have somewhere around -25dBm but at -29dBm I no longer receive the inverter, that is exactly what you show in the graph. The inverter is then indeed not down/offline and power is still being supplied. There are also separate antennas and coax cables for sale.

[dewi-ny-je]

The placement of the ECU is very important. The meter cupboard is usually not a good place.

I have somewhere around -25dBm but at -29dBm I no longer receive the inverter, that is exactly what you show in the graph. The inverter is then indeed not down/offline and power is still being supplied. There are also separate antennas and coax cables for sale.

Thanks, I did not think about it since the main page states that signal can go down to -70 dBm, so I have plenty of signal. This might be worth a mention in the docs/homepage.

Since I switched from cable to wifi, I'll surely reposition the ECU! in the attic it will be very close to the roof panels and it will be able to "see" the panels on the garage from high up, even if these will have the inverter hidden by the (likely highly shielding) panels themselves. Worth a try.

[dewi-ny-je]

All good now, it's in the -14 to -27 dBm.

[dewi-ny-je]

Also impacting the data about power generation, see how smooth it's today vs last week

Definitely worth mentioning that signal strength at -29 dBm and below will result in inconsistent data collection.

[HAEdwin]

-70 dBm would be a clear line of sight but I indeed doubt that would work, I've altered the text.