How to factory reset Cisco DPC3829AD router – Default Login & Password

The Cisco DPC3829AD router has Gigabit WiFi, 4 Gigabit ETH-ports and 0 USB-ports.
It is also known as the Cisco DOCSIS 3.0 8×4 Wireless Residential Gateway.

Cisco DPC3829AD default Password , Login & Gateway settings :

If you have performed a reset of your DPC3829AD 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) Cisco DPC3829AD :

You can factory reset your Cisco DPC3829AD 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

Cisco DPC3829AD router specifications :

System specs
CPU: n/a
RAM: 256 MiB
Flash: 128 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