how to auto restart router or modem when internet down?
Watchdog for Wi-Fi router~
A Tasmota socket can ping a remote host (router itself or something else connected to the router) and power cycle the socket to reboot the router. In this example, ping interval of 3 minutes is used. The simplest watchdog rule does not use variables:
Rule1 ON Time#Minute|3 DO Ping4 192.168.1.10 ENDON ON Ping#192.168.1.10#Success==0 DO Backlog Power1 0; Delay 10; Power1 1; ENDON Rule1 1