How to factory reset Roku Ultra (4640X) router – Default Login & Password

The Roku Ultra (4640X) router has Gigabit WiFi, 1 100mbps ETH-ports and 0 USB-ports.
It is also known as the Roku HD and 4K UHD Streaming Media Player with HDR.
How to factory reset Roku Ultra (4640X) - Default Login & Password

Roku Ultra (4640X) default Password , Login & Gateway settings :

If you have performed a reset of your Ultra (4640X) device or not changed the defaults, you
be able to access it with the following settings
Default subnet mask:

How to factory reset (hard reset) Roku Ultra (4640X) :

You can factory reset your Roku Ultra (4640X) 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

Roku Ultra (4640X) router specifications :

System specs
CPU: 1.2 GHz
RAM: 1024 MiB
Flash: 1024 MiB
Custom firmwares: None
WiFi: Gigabit (abgn+ac)
WiFi bands
2.4GHz & 5GHz
WiFi throughput: n/a
1 x 100mbps port
USB-ports: 0