sudo tc qdisc add dev wlan0 root netem loss 100%
sleep 2s
sudo sudo tc qdisc del dev wlan0 root netem
sleep 4s
sudo tc qdisc add dev wlan0 root netem loss 100%
sleep 4s
sudo sudo tc qdisc del dev wlan0 root netem
sleep 4s
sudo tc qdisc add dev wlan0 root netem loss 100%
sleep 4s
sudo sudo tc qdisc del dev wlan0 root netem
sleep 4s