How to factory reset CGM4231 router – Default Login & Password

The Technicolor CGM4231 router has Gigabit WiFi, 4 Gigabit ETH-ports and 0 USB-ports.
How to factory reset CGM4231 - Default Login & Password

CGM4231 default Password , Login & Gateway settings :

If you have performed a reset of your CGM4231 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) CGM4231 :

You can factory reset your Technicolor CGM4231 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

CGM4231 router specifications :

System specs
CPU: 1.5 GHz + 500 MHz
RAM: 512 MiB + 128 MiB
Flash: 256 MiB
Custom firmwares: None
Connectivity
WiFi: Gigabit (abgn+ac)
WiFi bands
2.4GHz & 5GHz
WiFi throughput: n/a
WAN
None
ETH
4 x Gigabit ports
USB-ports: 0