Restart WiFi with a shell script

Installing and Using OpenWrt
1

Hi,

I am trying to find a way to check and if needed restart my WiFi since it keeps stalling every couple of days.

Therefore I want to write a shell script that runs on the router and pings a WiFi connected device (ESP8266 that is running 24/7 anyways) every minute and if this fails it should restart the WiFi of the router.

Does anyone know how to restart WiFi with a CLI command?

2

was discussed recently

3

Cool! That worked! Thanks!

4

I have three devices that are always connected that I can ping to this should be pretty safe.
That's what worked for my setup with radio1 and a logfile:

#!/bin/sh

while true
do
  if echo $(ping -W 2 -c 1 192.168.8.11) |grep ', 0%' &>/dev/null
  then
    nichtda=0
  elif echo $(ping -W 2 -c 1 192.168.8.10) |grep ', 0%' &>/dev/null
  then
    nichtda=0
  elif echo $(ping -W 2 -c 1 192.168.8.12) |grep ', 0%' &>/dev/null
  then
    nichtda=0
  else
    echo "WiFi down"
    nichtda=$((nichtda + 1))
  fi

  if test $nichtda -gt 2
  then
    date +"%D - %T" >> /var/log/wifirestartlog
    uci set wireless.radio1.disabled='1'
    uci commit
    sleep 2
    wifi down radio1
    sleep 10
    uci set wireless.radio1.disabled='0'
    uci commit
    sleep 2
    wifi up radio1
    nichtda=0
    sleep 600
  fi

sleep 60
done
1 Like
5

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