[Errno 111] Connection Refused After Recent Update

[mp82ha (MP82)]

I have the same issue, also without any clue what’s going on:

Troubleshooting ESP32 OTA updating

My HA setup has a Olimex ESP32-POE-ISO-EA that I flashed the ESPHome firmware onto to use as a Bluetooth (BLE) Proxy. But I have not been able to update it since through OTA. The error I get is Connection refused. It’s on a different network subnet (192.168.1.0/24) than Home Assistant (192.168.0.0/24) with a firewall in between, but I’m after allowing all traffic between both, I’m not able to figure out what the problem is. I’m thinking there’s a different reason why it can’t connect. This is …