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BSNL ADSL Modem Configuration: ZTE ZXDSL 831AII (Type-1)

This guide will brief you about ZTE ZXDSL 831AII (Type-1). It will guide you about how to physically connect modem as well as firmware configuration of this modem pictorially. It is a easy and step-by-step guide for you.

You have chosen ZTE modem (Model: ZTE ZXDSL 831AII). The ZTE ZXDSL 831AII provides high-speed Internet access via one LAN port over ATM over ADSL, and also connects to the corporate network via a 10/100 BaseT Ethernet port. It is a type-1 modem in context to BSNL modem terminology. It has one Ethernet port and one USB port for PC connectivity (No Wi-Fi).

Front Panel:


Rear Panel:


Hardware Connection:


LED Status:


I will discuss the bridge configuration (i.e dialer mode) for this modem pictorially with required text when needed. I will break the whole modem configuration procedure in two sections.

Section I:

LAN Configuration:

              Put the IP address in Local Area Connection as-
IP Add: (Say)
Subnet Mask:
Default Gateway:

Section II:

Step 1: Open Internet Explorer or other browser, and put in address bar of browser and hit enter. One window of modem configuration will open, put the user name and password as-
User Name: admin
Password: admin


Step 2:  After providing user name and password, you will come to the home page of modem. Click on Configuration -> internet, the following window appears:

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7 thoughts on “BSNL ADSL Modem Configuration: ZTE ZXDSL 831AII (Type-1)”

  1. One of my mobile not connecting internet. saying incorrect password i.e zte p/w. Whereas other 2 mobiles are already connected. pl guide.

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