Change PLDT modem SSID

Edit 2016-09-08
If you’re looking how to do this on PLDTHOMEFIBR, see this post.


As my way of saying fuck you to PLDT for draconially locking down the modems and not handing over the key, here are instructions on how to remove “PLDTMyDSL” from your SSID.
These instructions are tested on provided ZyXEL P660HN-T1A. If you have another PLDT-provided modem, please try it out and comment your results.

Depends

Telnet client (PuTTY for Windows, if you don’t have one available). OS X and Linux come provided, just use the terminal.
5 minutes
a bit of patience

Procedure

  • Connect to the modem. By default, it is 192.168.1.1. Password is “1234567890”
    telnet 192.168.1.1
    or for PuTTY, host: 192.168.1.1, connection type: Telnet, port: 23
  • type
    rt ssidpre ""
    exit
  • Change SSID settings on modem web interface. Log in with adminpldt:1234567890
  • Enjoy.

Changes are not persistent across power cycles.

To make changes persistent, the CLI contains a basic text editor for autoexec.net which contains CLI commands that are run automatically after a full reboot of the modem:

router> sys edit autoexec.net
EDIT cmd: q(uit) x(save & exit) i(nsert after) d(elete) r(eplace) n(ext)

from http://pyro.eu.org/how-to/micro/billion-bipac-5200s.txt

Edit 2015-01-12
To make changes permanent

telnet 192.168.1.1
(enter password)
sys edit autoexec.net
keep pressing space or enter until you get past rt ssidpre PLDTMyDSL
i
rt ssidpre ""

(enter)
x
sys reboot

How this works

As stated above, the modem runs autoexec.net during startup. PLDT’s configuration includes a line which sets SSID prefix to “PLDTMyDSL” with rt ssidpre PLDTMyDSL. What we are doing is changing this prefix to "" (null) and effectively clears out the setting. The new line is only appended as deletion of the previous line is not necessary. Also, due to the confusing nature of the editor, inserting a new line for this edit is far less troublesome deleting and inserting a new line.

Edit 2016-06-06
Looking back, the editor seems to mimic the behavior (or is a variant) of ed, the standard text editor, which explains its very confusing interface.

Devices tested working

ZyXEL P660-HN-T1A

Edit 2015-06-02
I had for a few minutes an opportunity to play with the newer Baudtec based modem/router, forgot the model. It seems to use a different shell and couldn’t find the relevant settings with the short time I had with it. A workaround I can see is to hide the SSID of the main network (PLDTHOMEDSL, change its password for security also), use its virtual AP (multiple SSID) feature and set your desired name from there. The base name appears to be editable, but I haven’t tried it out for myself.

Alternatively, set the modem/router to bridge mode and get a better unit like an Asus RT-N16 AC-66U (if you have the money), or anything that can decently run DD-WRT, OpenWRT, or Tomato.

Edit 2015-07-21
A friend has one of those Baudtec modems and managed to play around with it for some time. I still haven’t found a way to remove PLDTHOMEDSL or PLDTMyDSL from this modem. However, its virtual AP (may also be named “multiple SSID”) feature lets you name a network without it. The drawback is, root SSID PLDTHOMEDSL (or variants) cannot be hidden. If you can live with that, enabling a second SSID and changing the root SSID’s password to something you don’t need to remember is a viable workaround. Its effects like being still able to access the router’s configuration page has not been determined. Otherwise, connect via ethernet.

Recommendation to get a separate router still stands.

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45 thoughts on “Change PLDT modem SSID”

      1. i use bridge mode, and adsl mode is at G.DMT annex A/L/M for stability since i’m far from the DSLAM. you can try ADSL2 (but not 2+), you might get better results.
        G.lite is good if you’re really far from the nearest DSLAM but take note you’re limited to 1.5mbit down due to spec limitations.

  1. Hello, i just want to ask. The pldt technician came to our house after several days of not having a connection. They changed our modem. Now in my laptop it says connected but when i browse, it crashes. I can barely use my laptop now. I tried the google dns, and command prompt for browsers and nothing changed. However in my phone, i can browse, watch yt videos freely.
    I’m sorry i cant point out specific technicalities cause i’ve also been searching for solutions. I hope you can help me, i left my email info. Please help! :(

    1. sorry, i can’t do personal assistance, but it sounds like the issue is rooted from your laptop, not with your internet connection. if other devices other than your phone(s) and computers work, the issue really might lie with your laptop.

  2. I can no longer fiddle with the Security, Applications, and Management tabs, they disappeared when I log in at the admin page, is there some work around for this? I really need to forward some ports and now I can’t because they disappeared as an option…

    1. By any chance you are using ULTERA or Smart Bro? Because if that is the case, your connection is behind a carrier-grade NAT. Port forwards will not work at all as the modem’s IP is behind a private IP address range. If on a wired PLDT connection, are you sure you logged in with adminpldt and not just admin?

      1. I have Homefibr, they call it an ONU? Optical Network Unit or something. I think it was an AN5506-04? I’m not sure, I have to check it later. I only tried using admin / 1234 to login to the admin page, the only settings I could tinker with were the State and Networking tabs. I’ll try logging in using adminpldt and 1234567890. Is that normal? For them to have two types of admin pages, one very basic and another advanced one?

        I distinctly remember being able to open the ports before because it was required in some applications to operate efficiently.

      2. Update: I tried the adminpldt / 1234567890. IT WORKED! Whew! So glad this site came up during a google search. This is the first time I’ve experienced this double administrator page, so this is really a relief for me, thanks!

        I also have an Ultera though, judging from your last reply, I assume that there is no way of forwarding ports on it? I’ve tried accessing the admin pages of both the Ultera router and the “Antenna” and didn’t find the service.

      3. Congratulations!

        For admin and adminpldt, looking through PLDT’s custom config found with the ZyXEL modem, it looks like they renamed the standard/low-privileged user as ‘admin’ and the actual root user as adminpldt. As for why, I’m guessing security by obscurity. These credentials are pretty much open secrets and I would assume that PLDT’s management and technical know about this but are not bothered enough to change it because of administrative overhead and costs, possibly. There is also another backdoor credential specific to your unit but it fails in a different manner for some reason when tried (this is aside from the TR-069 diagnostic tool used for ‘remote line testing’).

        For ULTERA, unfortunately, no way at all. If your LTE modem’s IP shows somewhere either of the folloing ranges 10.x.x.x, 172.x.x.x, or 192.x.x.x, those are private IP address ranges and your connection (and everone else’s) is behind NAT. Those address ranges were designated to be unroutable over the public internet and reserved for private networking use only (I’ll leave it as an exercise for the reader to define what ‘private’ is).

        PLDT’s Fibr offering should give you a public IP and port forwarding should work.
        If you are annoyed by ‘PLDTFibr’ in your SSID, as of now, I don’t know how to remove it as there is no offer of Fibr in our area to try. As a workaround, you may turn off the ONU’s wireless (optical network unit is apparently correct, according to Wikipedia) and get your own wireless router to do the WiFi for you. Make sure to plug it into one of the LAN ports and not to the WAN/Internet port and to turn off the WiFi router (or ONU’s) DHCP server to avoid conflicts.

  3. Yeah, another annoying thing about it is that I called the PLDT support line to inquire about the port forwarding issue and they just asked what user I used. Thinking about it now, no wonder they asked, they already knew that I could access it using a different user and yet they said nothing?! They had to give me a ticket about it, saying that they have to send a tech to sort out the port forwarding issue I have, geez! It was just as simple as using another user ID!

    I’m fine with the SSID thing, I just keep the ONU’s SSID hidden since it’s connected to other routers which are cascaded together. It already felt redundant before I had this issue wherein the ONU occupied the same area as another router. Now that I have a reason the remove the redundancy, all is good.

    Too bad about the ULTERA though, I’ll still use it, but it would have been better if I was able to open some ports. Anyways, thanks for everything, thanks for the information.

    1. To give their reps a benefit of the doubt, they probably know also but can’t deviate from the script even if they wanted to. The best we can do is to be nice to the reps and they’ll help the best they can. The rest of the problems lie with PLDT’s management hierarchy (and call center reps absorb the complaints so none really get through to actual management, I’d guess).
      On another side, I really have no faith in their customer support system. Hell, I’d even say they made their dial menus to be as obnoxious as possible to make people drop their call before they even get to an actual rep.

      I’d still advise to at least change the ONU’s WiFi password as PLDT uses a very simple pattern for passwords and can be guessed with very high accuracy. Hidden SSIDs be discovered with a few techniques.

      Port forwarding won’t happen with ULTERA, Bro, other WISPs until IPv6 rollout is widespread. But with IPv6, there’s no need to forward ports anymore.

  4. i had a baudtec model RN243R4-2T2R-A6 how can i remove the pldthomedsl then? is there a way for me to change this?what i did was rename the ssid

    1. Based on a limited time of handling a Baudtec modem, it was not possible to hide the root SSID. If you can tolerate having PLDTHOMEDSL showing up in the list of available networks, creating a secondary (“virtual”) SSID and naming it any way you wish is an option. I would highly recommend changing the password of PLDTHOMEDSL from the default.

      Either that, or get a better router and use the modem as a bridge only (I would recommend this option)

      1. Hi temporal thoughts!

        Let me begin by saying that I am with you in your saying f*ck y*o to PLDT. Unfortunately, I am not as technically proficient and would like to ask you another how-to, if you do not mind.

        I have a PLDT myDSL connection. I used to have a Zyxel modem only, until it broke down and PLDT gave me a new Baudtec modem-wifi router. So now I could not use my own wifi router.

        But from your last post, you recommended about getting a better router and using the modem as a bridge only. How can I do this? I mean what are the steps to make the Baudtec modem as a bridge only?

        Thank you in advance.

      2. Unfortunately, I did not document exactly how to set the modem to bridge (I would need to borrow a friend’s modem for that and it won’t be soon).
        Some vague instructions for now:
        Setting one of the newer Baudtec modems to bridge mode takes two(?) steps. Disabling DHCP then enabling bridge mode. Disabling DHCP would be somewhere in the LAN section, enabling bridge mode would be somewhere in the WAN section.
        If I recall correctly, going through the Quick Setup (or was it Setup Wizard?) gives you an opportunity to set the modem to bridge.

        Make sure to log in as adminpldt.

  5. Thank you for the fast reply and technical assistance temporalthought!

    That may be enough to get me going.

    Have a good day!

  6. Hi, stumbled on your blog by accident due to researching about ADSL Mode and Type. Any suggestion for speed and stability? From what I’ve read G.DMT is very stable if you’re only subscribed to a low speed of 4.5mbps. Is this a good analogy on it? I really don’t know how far the DSLAM is from our place, not to mention that I’m using an Ethernet Cable for the line from Terminal Box to the DSL filter.

    1. If you happen to have a noisy line or far from the DSLAM, G.dmt may help. Otherwise, ADSL2+. If your line is at 4.5mbit, G.dmt won’t be a problem. The specification is rated at 8mbit downstream and 1.3mbit upstream maximum (casual search on Wikipedia). You can check if your line is noisy if there is an entry similar to “CRC errors” and its value is increasing.
      If signal fluctucations are a problem and your modem is coincidentally a ZyXEL P660 (maybe other ZyXEL modems with the same chipset too?), you can adjust its SNR threshold. Same instructions as above but change rt ssidpre "" to wan dmt set snrm -1024 when set to G.dmt or wan dmt2 set snrm 1024 1024 (not sure if this has to be negative also, forgot) if set on ADSL2 or 2+. As above, settings are not persistent across reboots unless saved to autoexec.net.

      Add or reduce 512 for each dBm that needs to be increased or reduced. Values are relative to what’s set in firmware, which may be set by your ISP.

      By ethernet cable I’m assuming it’s a CAT5(e) or CAT6 cable used as a telephone line? If that is the case, then no problem at all as long as it’s wired correctly. Your modem may be able to give you an estimate of how far your line is from the DSLAM, but take its accuracy as a very rough estimate.

      1. Hi again temporalthought,

        Well I was using a Zyxel P-660R-D1, before it got submerged in a pool of rainwater recently, now using a ZTE ZXV10 W300D, which has both of those options, plus other “Annex settings/standards”. Now here’s a kinda stupid question, if I put the option ADSL2+ under ADSL Type, is it still possible for me to get a connection from a G.dmt, or will the modem only allow a connection under that category(ADSL2+)? Also a follow-up to my initial question, why is it more stable to use G.dmt than ADSL2+? Is it because G.dmt can withstand more “noise” than ADSL2+?

        (Just a Sidenote: Person asking has NO BACKGROUND whatsoever in ECE, but is an avid reader/learner on all things related to gadgets, computer stuff, etc. aka Computer Geek)

      2. Disclaimer: no ECE or communications background either, all this is from reading up and casual experimentation.

        Now here’s a kinda stupid question, if I put the option ADSL2+ under ADSL Type, is it still possible for me to get a connection from a G.dmt, or will the modem only allow a connection under that category(ADSL2+)?

        First, not a stupid question. Better to ask if you’re not sure.
        When your modem is set to ADSL2+ only, it will try to negotiate ADSL2+ with the headend (I think it’s called like that, probably not). If the headend does not support ADSL2+, no, the modem will not be able to sync. However, I’m assuming that most, if not all equipment from the carrier to consumer units here in the Philippines support ADSL2+ so we won’t have problems there.
        If the modem is set to a setting similar to “Auto” or “Autonegotiate”, most common behavior is to try to negotiate the highest possible standard both carrier and modem can talk on. That is, if headend can only support G.dmt (and that’s really, really old equipment), then modem will go for G.dmt as it is the greatest common denominator both ends support. If the modem supports G.dmt only or is set to use G.dmt only, then the headend will adjust accordingly.
        To answer the question, if the modem is set to ADSL2+ only, then it will try to connect with ADSL2+ only, no more, no less. If other side does not support, no sync.
        I find this analogous to locking your cellphone between 2G/EDGE only, 3G/UMTS/HSPA(+) only, or use either 2G or 3G network (or LTE if you have).

        Also a follow-up to my initial question, why is it more stable to use G.dmt than ADSL2+? Is it because G.dmt can withstand more “noise” than ADSL2+?

        I would guess not because G.dmt can withstand more noise, but rather because ADSL2+ syncs with a higher speed at a given SNR compared to G.dmt. And since ADSL2+ can sync at a higher speed given an SNR, then the modem will. Drawback is when syncing at a higher speed, signal becomes more sensitive to noise and interference.

        Please do note what I’m saying here is not empirical and taken only from experience and reading. I may be wrong, but in my setup, this is how it works (aside from the SNR threshold tweak which really does work).

        As for your ZTE modem, I’m not sure if tweaking SNR thresholds is possible. You can try to telnet into it and see if it gives you some sort of login form or similar and look around, but be careful.

  7. Thanks for the reply, learned alot from it! And from my end you seem to know more of this “stuff” than people I know who work with it. Also will do more research on ZTE Modem and try “telneting” (well if that’s a word)to it.

    Anyways here’s me hoping you put up more post on this stuff(it’s really worth the read) and kudos to your blog!

    1. On a follow-up to your modem, looks like it does have a telnet interface.
      https://www.kb.cert.org/vuls/id/228886
      The default credentials are listed there, if it doesn’t work, try with the password bayanDSL or bayandsl (or some other combination? Found it floating around the ‘net).

      Thank you for your kind words. Unfortunately, I don’t have any content about these kinds of tweaks for now but I’ll put one up as soon as something comes by.

  8. Any solution for setting PLDT Home DSL Baudtec’s SSID permanently?
    “sys edit autoexec.net” is not working. Thanks!

    1. Is this on a Baudtec modem? I’m not what you mean but when setting an SSID it doesn’t allow you to use spaces? Try using a backslash

      \

      to try to escape the space character or variations like

      %20

      .

      I’ve observed with the HomeFiber ONU also has multi-SSID support but still keeps the PLDT prefix.

  9. paps, nastustuck ako sa telnet, di ako makapasok dahil humihingi ng user pass at ayaw mag type sa password area.

  10. 192.168.1.1 adminpldt/1234567890 is the original root login you could see advance settings. admin/1234 is the user login depends on modems some doesn’t allow telnet like baudtec.just access the webinterface typing 192.168.1.1 you will be able to login

      1. hello temporalthought, alam mo na ba kung paanu mwawla ung PLDTHOMEFBER na nkasingit sa SSID??? at wala ba talagang MAC Filtering yung i-allow at deny lang yung address na i-insert duon, inexplore ko na yung firmware ng fiber modem wala tlga, baka may solusyon ka duon, para di na ko bumili ng extra router, kapos sa budget eh….

      1. Ah yung FiberHome. Iyan rin ang hawak kong modem ngayon at sa ngayon hindi ko pa rin mahanapan ng paraan. Hindi rin ako makakuha ng config dump kaya pahirapan pa rin.

      1. hello ano ba ang default port number ng BaudTec RN243R4 modem router, di ko kasi mahagilap sa loob ng firmware nya… tnx..

  11. ahh ok, salamat po, sinubukan ko yung putty, nag iinvalid password kahit tama yung naipasok ko….pati sa MAC Filtering, blacklist at Whitelist lang, di ko pa ma block yung port ng COC, buti pa yung baudtec modem pwede pa kahit pang-bahay din na modem yun.. Well sa ngayon tiis tiis na lang muna ako dito hehehehehe…..

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