SURFboard SB4100

The Motorola SURFboard SB4100 router has No WiFi, 1 100mbps ETH-ports and 0 USB-ports.

Quick links:
Default password/Login

SURFboard SB4100 router specifications (specs)

System specs
CPU: 100 MHz
RAM: 8 MiB
Flash: 2 MiB
Custom firmwares: OpenWrt

Connectivity
WiFi: No ()
WiFi bands: n/a
WiFi throughput: n/a
WAN: None
ETH: 1 x 100mbps port
USB-ports: 0

Hard reset instructions for Motorola SURFboard SB4100

If your SURFboard SB4100 router is not working as it should, dropping connections or not being responsive, you should first do a reset of the router to see if the problems persist. Other scenarios where you might want to reset your router is if you've forgotten the password or misconfigured it and can't get access anymore.
Your can reset your Motorola SURFboard SB4100 in the following way(s):

The 30-30-30 reset

There are no specific instructions for this model yet, but you can always do the 30-30-30 reset as follows:

When router is powered on, press the reset button and hold for 30 seconds. (Use a paper clip or something sharp)
While holding the reset button pressed, unplug the power of the router and hold the reset button for 30 seconds
While still holding the reset button down, turn on the power to the unit again and hold for another 30 seconds.

This process usually works for resetting any router to it's factory setting.

Note: It is worth reading more about how to reset routers with the 30 30 30 reset and what the risks and considerations are when resetting your router this way, instead of just rebooting it.

Default factory settings for Motorola SURFboard SB4100

If you have performed a reset of your SURFboard SB4100 device or not changed the defaults, you should be able to access it with the following settings:

Default Gateway IP: 192.168.100.1 Motorola login instructions
Default subnet mask: 255.255.255.0
Default DNS server: 192.168.100.1
Note: If you are using the default settings you should change them to increase security and prevent unathorized access to your network.