How to factory reset Google Chromecast 2015 (NC2-6A5) router – Default Login & Password

The Google Chromecast 2015 (NC2-6A5) router has Gigabit WiFi, N/A ETH-ports and 0 USB-ports.
It is also known as the Google Google Chromecast 2015.
How to factory reset Google Chromecast 2015 (NC2-6A5) - Default Login & Password

Google Chromecast 2015 (NC2-6A5) default Password , Login & Gateway settings :

If you have performed a reset of your Chromecast 2015 (NC2-6A5) device or not changed the defaults, you
should
be able to access it with the following settings
Default subnet mask: 255.255.255.0

How to factory reset (hard reset) Google Chromecast 2015 (NC2-6A5) :

You can factory reset your Google Chromecast 2015 (NC2-6A5) in the following way(s)
1. When the router is on, press the button reset and hold for 30 seconds.
2. While holding down the button reset, turn off the power of the router and hold down the button reset for 30 seconds
3. While holding down the button reset, turn on the power to the unit again and hold for another 30 seconds

Google Chromecast 2015 (NC2-6A5) router specifications :

System specs
CPU: n/a
RAM: 512 MiB
Flash: 256 MiB
Custom firmwares: None
Connectivity
WiFi: Gigabit (abgn+ac)
WiFi bands
2.4GHz & 5GHz
WiFi throughput: n/a
WAN
None
ETH
None
USB-ports: 0