A8 lost network connection via LAN

[Dizhuster]

can you test with esphome  yaml or KCS firmware?
another test way, whether wifi is stable? or only have issue with ethernet?

The module is controlled by the Home Assistant with ESP Home and I make all changes, if necessary, through the ESP Home integration. 
So yes, I have access to the *.yaml file. 

To be honest, I don't even know what the KCS firmware is. )) I've never come across this.
 
The network port was selected as potentially stable, so the module is installed in an iron electrical box and the Wi-fi settings block in the configuration file is closed.

But it seems to me that the problem is not related to the *.yaml file. I will try to connect the device via Wi-fi, but judging by previous messages, this is unlikely to help.