Philips Hue: Bridge Not Found, Connecting to the Repeater Router

Lamps:

1. Power
2. LAN
3. Internet

Problem

When connected to the repeater router the Hue app still couldn't find the Bridge and sometimes shows only 2 lamps lit though the internet is up.

Solution

1. Find the MAC address of the Bridge: In this example: EC:B5:FA:3F:35:89
2. Add the IP address reservation by MAC in router's DHCP settings, this ensures the Bridge will always get the same IP:
3. Reboot the Bridge, so that it gets the static IP assigned
4. Manually enter the IP of the Bridge in the Hue app

Additionally the Bridge can be factory-reset by pressing a button behind the device.