How to factory reset Linksys CM3008 router – Default Login & Password

The Linksys CM3008 router has No WiFi, 1 Gigabit ETH-ports and 0 USB-ports.
It is also known as the Linksys DOCSIS 3.0 Cable Modem.
How to factory reset Linksys CM3008 - Default Login & Password

Linksys CM3008 default Password , Login & Gateway settings :

If you have performed a reset of your CM3008 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) Linksys CM3008 :

You can factory reset your Linksys CM3008 in the following way(s)
Through the web interface
Open your browser and navigate to the router interface (see default settings below)
Under the Administration tab you will find a sub-tab called Factory defaults
On the Factory defaults page click the button labeled Restore Factory Defaults
With the reset button
Have your unit powered on
Press and hold the reset button for at least 10 seconds until the power light starts blinking, then release.
When the power light goes solid, unplug the power to the router for 10 seconds
Plug the power back in and start the router
When the power light goes solid again the router is ready to use.

Linksys CM3008 router specifications :

System specs
CPU: n/a
RAM: 128 MiB
Flash: 16 MiB
Custom firmwares: None
Connectivity
WiFi: No ()
WiFi bands
n/a
WiFi throughput: n/a
WAN
None
ETH
1 x Gigabit port
USB-ports: 0
CM3008 Firmwares
Staying up to date with the latest firmware is a good idea to keep your router even more
secure
from various security flaws.
If you want to squeeze a little bit of extra functionality out of your router, consider
flashing
an open-source firmware like dd-wrt, openWRT or LEDE. Flashing a custom ROM can greatly
increase
the stability and functionality of your old router.
Following are the firmwares that we have identified existing for the Linksys CM3008
Linksys stock firmware for the CM3008
Stock firmwares for the CM3008 are available under the download section on the
modem’s
support page. You can also refer
to the router’s manual for instructions on how to upgrade the firmware.