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How to change your BSNL modem password using telnet

BSNL is one of the top ISP’s in India and you might want to consider changing the default to prevent hackers!
You can change the BSNL username and password using the web version available at but changing it through telnet can be vey helpful if you cannot access the web version.

OS supported:Windows XP Professional, > Windows Vista Home Premium , > Win 7  Home Premium
If your OS by chance lacks telnet , use pUTTY , Available here(Download putty.exe)

Step #1 Connecting to Router/Modem

The modem used will be ZTE  ZXDSL 831Aii but it is similar for all modems

Start > Run (WIn Key + R) > telnet
Login with your MODEM username and password not the one they gave you(Default username is admin and password is also admin)

Now type there
user password

and enter the new password and it will be changed

ZTE  ZXDSL 831Aii password change

If you have any problems comment it out

Procedure has been explained in a HD video please watch it in full screen for best clarity
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