ESP8266

Install Tasmota web interface use Microsoft Edge

if you have connection problems:

SetOption41 60   Force sending gratuitous ARP (Wi-Fi keep alive) every <x> seconds (default = 60)

Wifi 3

ESP8266 only:
2 = Wi-Fi mode 802.11b
3 = Wi-Fi mode 802.11b/g
4 = Wi-Fi mode 802.11b/g/n

WifiPower 20.5

set Wi-Fi transmit power level in decibel-milliwatts (dBm) (default = 17)

Restart 1 = restart device with configuration saved to flash