During the restart process that's part of the keezel configuration, the keezel LED will turn blue, then off, then start blinking green again. While the light is blue or blinking green rapidly, the Keezel wifi will not be visible in your list of available networks. Once the light starts blinking green steadily, that's when you'll see the Keezel Wifi and be able to connect to it. Do note that after the restart, the Keezel wifi will no longer be named keezel - xxxxx, but it will have the name you chose for it during the setup.
If the Keezel restarted and the light is blinking green steadily again, but you don't see the Keezel network in the list, please try:
1. Turning your WiFi off and on again for a few times until the Keezel WiFi appears in the list.
2. Turning your Keezel off and on again and then checking the list for the Keezel network.