Push and HOLD pinhole with thin wire. The Status LED will turn to a “blinking amber'. Keep holding, and when it turns to 'blinking green', immediately release the pinhole.
After 1 second, push and HOLD the pinhole again. The Status LED will turn to a “blinking red”. Keep holding, and when the Status LED turns to 'solid amber' or 'solid green', immediately release the pinhole and wait.
Firewall will reboot and be available in approximately 3-5 minutes. Pings to 192.168.1.1 should then work.
You will then have to set up the router from scratch I suggest reading each window in the GUI as it appears. Once complete load a backup config file onto the router, note you cannot load a config file straight away as you get a file to small error!