ZTE ZXDSL 831 modem/router default password

This was first posted on my old blog. It should not be a mystery for those of you who wish to explore your modem supplied by Telekom Malaysia.

The default password may not work if you’re living in another country. I’ve had quite a few people asking for the default password so might as well just document this.

(Case sensitive)

Username: ZXDSL
Password: ZXDSL


Username: ADSL
Password: expert03

What do you do when you’ve accessed the administration page? Perhaps you wanna configure your ZTE ZXDSL 831 as a router.

Tags : ZTE ZXDSL 831, default password, TMNET, Telekom Malaysia, StreamyX, modem, router

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78 Comments so far

  1. lana on May 22nd, 2005

    what does one mean by power cable pulling-can solve problem with the zxdsl modem

  2. toxicle on May 22nd, 2005

    I have no idea. It would help if you describe the problem :)

  3. mamatd on July 15th, 2005

    He he he.
    Community service or promoting new site?

    Welcome back bro’.

  4. cyberian on August 29th, 2005

    I just registered for streamyx recently and I’m using it now. My problem is I do not know how to do port forwarding because base on your instructions, the interface or firmware… I don’t know which is correct, is different than the one that you posted at your port forwarding blog. The NAT is now under Advance instead of NAT service. Can you help me with this please. Probably Telekom has changed the firmware to a new one or so. I don’t know.

    Thank you.

  5. toxicle on August 29th, 2005

    You mean like come to your house? The firmware may have been updated but the functions are still the same. Look around. I can’t possibly provide help on every firmware version unless you send me your modem :)

  6. blazer on September 7th, 2005

    I got one ZTE ZXDSL 831 mdm myself. I was wondering how can I made this changes “G.DMT/G.LITE/T1.4xx” mode using web base access.

  7. Srinivas on September 29th, 2005

    I would like to know that ZXDSL 831D is a modem or router

  8. akim on October 8th, 2005

    my ZTE ZXDSL 831 was supplied by Telekom. i tried both user/pass thing that you posted but none of them are working. is there any other defaults user/pass for this modem?

  9. toxicle on October 9th, 2005

    I only know of these two. Please note that they’re case sensitive.

  10. Pradeep on December 16th, 2005

    i tried both default username and password, but its not working. please tell me some other solution to confg the router.

  11. s17hy on December 19th, 2005

    I’ve tried these two default passwords and both are not working for my zte zxdsl 831. I think my isp changed the default one. Is it possible?

  12. toxicle on December 19th, 2005

    They only work if you’re in Malaysia.

  13. tr89 on January 2nd, 2006

    do u know the port forwarding for DSL 600E?

  14. patrickyu on March 8th, 2006

    i try the use name & password but still can get in

  15. Ali on March 14th, 2006

    Hey, thnx bro, the
    usern:ADSL pass:expert03
    worked with the ZTE ZXDSL 831 supplied with ‘basic 1Mb’ by TmNet streamyX.

    Have a nice day,

  16. asttin on March 21st, 2006

    hi…my friend just change the defult gateway and forgot it. so i cant login to

    how to reset the setting to factory default? i try to trace the gateway default through ipconfig/all but still dns error

    what i have to do?

  17. zul on April 19th, 2006

    how to disable the auto connection

  18. zulkharnaim on April 21st, 2006

    log in aztech http:
    username: ?
    password: ?

    sesiapa boleh tolong

  19. zulkharnaim on April 21st, 2006

    mintak tolong siapa leh kasi username dan password router aztech 600e

  20. toxicle on April 21st, 2006

    asttin: Press the reset button for 10 seconds while switching it on.

    zulkharnaim: Try admin admin, admin password or admin (no password)

  21. naz on April 29th, 2006

    login n password untuk aztech 600E ialah

  22. nadzrul on June 29th, 2006

    minta tolong saper blh bagi password selepas kt telnet modem ZXDSL 831

    login :

  23. Dealamania on July 9th, 2006

    I wanna reset my zxdsl 831
    Coz I forgot my password
    At that time
    I dun’ recognize what did I set
    So plz show me the way how to reset it

  24. toxicle on July 9th, 2006

    Dealamania: Read the previous comment I posted on this page. I’ve answered this question before.

  25. vincitore on July 9th, 2006

    Hay Dude
    I dun’ wanna reset like that
    If other way to reset
    like resetting remotely
    If u can plz tell me

  26. toxicle on July 9th, 2006

    Oh you’re funny :) I’m not going to teach you how to break into someone’s device. If you really need to, brute force it :P

  27. vincitore on July 11th, 2006

    I wanna know my zxdsl 831 password
    I dun’ wanna reset it
    Coz if I do like that
    I ‘ll face some problem with my ISP
    If u know how to recovery it plz send it to this mail address
    [email protected]

    with best rgds

  28. José on July 12th, 2006

    dude thx a LOT! I was looking for my router pass long ago, and my ISP has a crappy level on anything related to answer their clients questions. thx a lot once again

  29. toxicle on July 12th, 2006

    vincitore: Hard resetting it will return it to your default ISP settings. Or crack your brain for the password :)

  30. hilman on August 7th, 2006

    how to get the driver for ZTE ZXDSL 831
    lost my cd.. so they askd me to buy new modem.

  31. toxicle on August 7th, 2006

    hilman: The ZTE ZXDSL 831 is a network device and do not need a driver.

  32. grogi79 on October 17th, 2006

    hilman: i’ve got a driver for your modem… mail me at yahoo

  33. emperor81 on October 31st, 2006

    I need help… I am using streamyx (Modem ZXDSL 831)… But, the problem is, I just format my pc and using windows 98se… I do not have the installation cd… Also, any driver that needed… I am wondering, is there anyone over here that can help me to establish the internet back?

  34. emperor81 on October 31st, 2006

    grogi79, what is ur email?

  35. toxicle on October 31st, 2006

    emperor81: What you need is the dailer … not the driver.

  36. rioven on November 9th, 2006

    will hard reset change username n password to default??

  37. toxicle on November 9th, 2006

    rioven: Yes

  38. edgar on December 2nd, 2006

    grogi79: can you send me a copy of driver you have for XDSL 831…thisis my email add : [email protected]


  39. edgar on December 2nd, 2006

    guys this is the whole story….we have DSL connection at the office with PROLINK dsl aparatus…and i want to have my own connection in my room (to be used when DSL connection at the office is turned OFF, same phoneline connection) i have other DSL aparatus like ZTE XDSL 831, but the problem is when i’m trying to connect all cables it prompts that connection is unplugged…is there anyhing that i need to install for ZTE XDSL before i used it?

    **my XDSL 831 was used at the other office before.

    for your help pls email me at : [email protected]


  40. toxicle on December 3rd, 2006

    edgar: the ZXDSL 831 is a network device and do not need any software.

    May I ask … you said the same phone line … is it a parallel phone line connection? If so you need to have proper DSL filter on both lines. Not advisable to have a parallel connection.

    Phoneline — DSL port (ZXDSL 831) Network port — PC

  41. Bill on December 22nd, 2006

    thanks for the pass words i’ve been looking for this passwords for weeks :)

  42. ashwini on December 27th, 2006

    Hi all
    I ma facing the problem in configuring the ZTE router.Very confused about what is VPI and VCI for Tataindicom.SImilarly what is service category,and protocol .If i am using the DSl connection.

  43. N@2 on December 29th, 2006


    recently my household acquired a 5 port switch for internet purpose via the zte zxdsl 831 streamyx modem. the problem is only one pc can access stremyx at one time. anybody outhere can help me out so that more than 1 pc can access the internet at one time. is it a router problem or what?
    how to configure the pcs/switch/modem?

    ive access the website using the password provided from this website and made many changes but still to no avail. plz help me out.

    p/s the password really works only the setting i dont understand.

    thx in advance.

  44. toxicle on December 29th, 2006

    N@2: You need to turn the 831 into a router first

  45. NH on January 31st, 2007

    hi toxicle…

    man i face a big problem…
    i try setting the (zte zxdsl 831) modem to be router then i can connect to internet.
    but the next day i cant connect to internet.
    with normal dail connection also cannot.
    i dunno wth is going on..
    help me ASAP pls..
    this thing make me headache..

  46. toxicle on February 1st, 2007

    NH: Just hard reset your modem and it will be back to original settings.

  47. Sachin on February 20th, 2007


    I had forgotten my pwd, so I did a hard reset of my ZXDSL 831 but i am not able to connect to

    Can someone help?

  48. matt on March 9th, 2007

    user: user
    pass: user

    prueben esee

    try this! =)

    saludos desde Argentina =)

  49. fjs53w on March 17th, 2007

    why my router setting didnt have NAT this function ? so i cant use port forwarding…pls help me thankxxxxxx

  50. alberto on April 13th, 2007 doesnt works!! what should i do??

  51. Juan on April 22nd, 2007

    Hello guys!
    well i have just acquired a 831II modem from my isp i tried from after resetting it and the logon dialog appears.. but after having tried with many users and passwords i still have been unable to get into its setup

    i have tried with

    if you have any other pass i may try i would thank you a lot :D
    btw.. i tried to login to it from telnet and this seems to be de firmware of the modem “ZTE In., Software Release ZXDSL 831IIV5.6.1a_E09_UY”
    thanks in advance :)

  52. toxicle on April 22nd, 2007

    alberto: Hard reset

    Juan: Sorry I would have no idea because different ISPs use different username/passwd. You need to check with your local ISP.

  53. blueleaf on April 23rd, 2007

    hi… im a streamyx user with ZXDSL 831, i want to do portforwarding, but seems i cant access the page with those passwords, i also did hardreset, but still cannot. but there s something i dont understand, in my page, there is no such thing as user id, its just login password, help pls =)

  54. toxicle on April 24th, 2007

    blueleaf: Perhaps you are using a new firmware. I would have no idea but you can always try the default passwords like admin, password, , etc.

  55. Rodrigo Rosa on April 26th, 2007

    all the family of ZXDSL 831 modems from ZTE(ZXDSL 831, ZXDSL 831a, ZXDSL 831c, ZXDSL 831d and ZXDSL 831II) acts both like modem and router, and may even include a Firewall.
    To get access to the modem at the IP address to make configurations, you need to set up a fixed IP address in your LAN properties using the same network segment (i.e. wirth the as default gateway, and connect directly to the modem with a network patchcord.

  56. Zanjoe on April 28th, 2007

    This is crazy .. you are incorrectly leading them .. the Interface is really different in what you are talking about .. we are using ZZXDSL 831 .. and the default username and password is admin and admin

  57. Vlu on May 16th, 2007

    hi guys.. i have an internet connection in mya room, theres another computer in our living room and i want to connect that comuter to the internet too… how can i connect that computer to my zte adsl modem without any switch or hub or router.. i mean you know… its pretty expensive for a student like me, is there any other way… thanks… by the way.. i have a rj45 splitter (like on the phone line) can i use that? ill plug the spliiter to the ethernet port… then with two ports now.. ill connect the two pc… is that possible? thanks again

  58. haytaa.halil on May 19th, 2007

    zte zxdsl 831a

  59. PcMan on July 28th, 2007

    Aztech product username & passwd usually admin & admin

  60. PcMan on July 28th, 2007

    hi Vlu,
    internet connection using DSL is like a network connection. So it doesn work like telephone. If your modem router only got 1 ethernet port, you still need to buy switch or hub to connect xtra pc. I think small hub (4 ports) cost less than RM100 now.

  61. Tobecx on July 28th, 2007

    Pcman, not all aztech family has the same login name n password.thanks toxicle…ur guide is helpful.

  62. tonakis on July 31st, 2007

    hi guys, I wanna ask u a q.. so I have the root of my ZXDSL 831II mdm (don`t ask) and now I saw that there is another user added in `support` and I need to what is the command that I should use to change the password of that other user, `cause I tried to crack it from the backupsettings.xml (current mdm cfg file) and I almost did, but I still have 3 more symbols and I`m out of ideas. So if someone have any exp with any help will be great. tnx. best regards

  63. Easemat on August 8th, 2007

    ido have adsl router ZTE In., Software Release ZXDSL 831IIV5.5.1a_E09_ov”
    is any way to how much instanious band width ihave
    because it gaves me only acoumlated packet , but i need to know how much speed at acertan moment,
    is any acurate software for such router,upload &download,also any way to update the router software, & firewall & how thanks in advance watting for replay
    [email protected]

  64. Easemat on August 12th, 2007

    sorry iam corecting my email & iam watting for help
    [email protected]

  65. NEHAL on August 20th, 2007


  66. guiliche, viano on September 7th, 2007

    I have a modem zte zxdsl 831 which is not configured on my pc, I mean is not listed and I do not have a disk. I need to configure my pc, what must I do?

  67. utopia on September 27th, 2007

    toxicle, why my router setting didnt have Nat function(tab)…ive looked everywhere still didnt find it, i wanted to do port fowarding..can help?

  68. utopia on September 27th, 2007

    why my router setting didnt have NAT function(tab), ive looked everywhere but still didnt find, i wanted to do port fowarding, can help me toxicle?

  69. ameen on October 6th, 2007

    i cant login n the password hasnt changed befor :S:S:S:S:S

  70. SlayerX_91 on October 12th, 2007

    How do i reset the user and pass? i forgotten mine :( please help me…

  71. toxicle on October 16th, 2007

    Press and hold the reset button for about 10 seconds.

  72. tarun on January 10th, 2008

    how to get the driver for ZTE ZXDSL 831 lost my cd
    how connect two pc for internet to this modem

  73. toxicle on January 10th, 2008

    tarun: Your questions had been answered many times above. Please read all the comments.

  74. Sabu on January 15th, 2008


    Out of all the comments, Juan’s comments on 22nd April is same as my problem with my ZTE ZXDSL 831 AII router. I could login with login/password admin/admin but could not get the advanced configuration pages which allows you to configure NAT rules/Virtual Server/IP Filter etc. I think the admin login is opening up the configuration settings for ‘user’ rather than for ’superuser’. How can I get back the advanced configuration pages, cos I need to setup port forwarding for HTML, HTTPS, FTP, Telnet etc.? Is a firmware upgrade needed?

    Thanks in advance & Regards


  75. mostafa on February 20th, 2008

    i want to know how i stop net cut from router

  76. Joe on April 24th, 2008

    please i need your help!! can anyone send me the usb driver for my zte zxdsl 831 ´cause i lost the cd….send me at this e-mail [email protected] i´ll be gratefull

  77. JayP on May 3rd, 2008

    I need urgently this firmware
    ZXDSL 831IIV5.5.1a_E09_OV

    Tks in advance

  78. Jan on May 9th, 2008

    Hey Guys,

    I have a problem my modem is from china net
    ZTE 831b series.

    the problem is is not working to connect to the modem.

    also my own ip adress is in a whole other range this is how my settings look like atm:

    IPv4-adres. . . . . . . . . . . . :
    Subnetmasker. . . . . . . . . . . :
    Standaardgateway. . . . . . . . . :
    DNS-servers . . . . . . . . . . . :

    IPv4-adres. . . . . . . . . . . . :
    Subnetmasker. . . . . . . . . . . :
    Standaardgateway. . . . . . . . . :
    DNS-servers . . . . . . . . . . . :

    Please Help !

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