ZXDSL 831B
ADSL CPE

The ZTE ZXDSL 831B router has No WiFi, 1 100mbps ETH-ports and 0 USB-ports.
It is also known as the ZTE ADSL CPE.

Quick links:
Default password/Login
User Manuals



ZXDSL 831B router specifications (specs)

System specs
CPU: n/a
RAM: 8 MiB
Flash: 2 MiB
Custom firmwares: None
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 ZTE ZXDSL 831B

If your ZXDSL 831B 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 ZTE ZXDSL 831B 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:
  1. When router is powered on, press the reset button and hold for 30 seconds. (Use a paper clip or something sharp)
  2. While holding the reset button pressed, unplug the power of the router and hold the reset button for 30 seconds
  3. 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 ZTE ZXDSL 831B

If you have performed a reset of your ZXDSL 831B device or not changed the defaults, you should be able to access it with the following settings:

Default subnet mask: 255.255.255.0

Note: If you are using the default settings you should change them to increase security and prevent unathorized access to your network.

User Manuals for ZXDSL 831B

Do you still have questions concerning the router that you can't find online? You can always try the manuals where most questions should be answered from the manufacturer. Below are the device manuals available for your ZXDSL 831B.

Name Type Size Date
Users Manual (click to download) pdf 153.64 kB Oct. 30, 2009



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