Try changing macaddress. It will remove you from the list of the attacker.
If ifconfig is not installed
sudo apt install net-tools
This will give you a list of network interface card. Some of them are for bluetooth, wifi. Note down the name responsible for wifi connection. For my PC it was wlp3s0
Now install macchanger
sudo apt-get install macchanger
Turn off the network interface card
sudo ifconfig wlp3s0 down
Randomly change macaddress
sudo macchanger -r wlp3s0
Turn on the network interface card
sudo ifconfig wlp3s0 up
Turn off wifi and turn it on
Macaddress is changed, internet will work fine. This changes macaddress temporarily. Upon restart you need to change address again.