SG-DataBox For SG Series Microinverter 2.4G Wireless

Hello, DataBox is not working, how can I solve the problem?
databox

I live in the left house (1) and behind house (2) in the garage is the solar field with smart microinverters. If I connect the data box to the PC, house (1), I get no reception. If I connect the Databox to the second Fritz!Box, I have no connection.
If the distance is too far, the WIFI module may not be able to receive the signal.

Here is the official download source for SG Series manual, drivers and software: [allofsolar.com]
(DataBox24G-DataCollector-AllOfSolar.com-Professional suppliers of solar grid tie Microinverters and generation systems)
This is what the box looks like from the inside.

The ESP 01 and the jumper block are interesting.
Couldn’t the data be bent somehow with a second ESP 01 and/or Tasmota?

databox-SG-serie-innen2

The unused space is also interesting. Was it intended for a WiFi connection?

regards
Lutz

I think I found the module that should be installed there. HC-12 Si 4438 can do up to approx. 473Mhz. Or 433Mhz HC-12 SI4463 Wireless Remote Serial Port Module 1000m.