Configuring iPhone/iPod Touch WLAN For NUS Wireless

Here is a tutorial on how to configure your iPhone, iPhone 3G, iPhone 3GS, iPod Touch or iPod Touch (2nd Gen) to connect to NUS Wireless network. We will be using NUS WLAN SSID “NUS” instead of “NUSOPEN”, as “NUS” is protected by PEAP and it is much faster.

*UPDATE 2* There is a bug in iOS4 which cause .mobileconfig files not recognized by Safari. For more details, read here. To overcome this issue:

  1. Using your computer, go to
  2. Key in your NUSNET UserID and click Generate
  3. Your browser should prompt you to download the NUS.mobileconfig file
  4. Once you have downloaded the file, email the file to yourself
  5. Using in your iOS, open up the the email which contains the NUS.mobileconfig attachement
  6. You should now be able to install the NUS.mobileconfig profile

*UPDATE* It is now working with iOS 3.0.


  1. Launch Safari in your iPhone/iPod Touch
  2. Go to
  3. Under Your NUSNET ID, key in your NUSNET UserID (EXCLUDING the domain (NUSSTU, NUSSTF or GUEST) portion)
  4. Click Generate
  5. A Install Profile screen will appear
  6. Click Install
  7. A Install Profile Warning Popup will appear
  8. Ignore the warning and click Install Now
  9. A Enter Password screen will appear
  10. Key in your NUSNET Password
  11. Click Next
  12. A Profile Installed screen will appear
  13. Click Done
  14. Go back to your Home Screen
  15. Go to Settings -> Wi-Fi
  16. Under Wi-Fi, select ON
  17. Under Choose a Network…, select NUS
  18. Wait a while, while it trys to connects
  19. A Certificate screen will appear
  20. Click Accept
  21. You are now connected to NUS WLAN SSID


  • At Step 18, you may need to re-try Step 14 to 17 if it takes more than 1 minute to connect.
  • At Step 20, you may need to re-try Step 14 to 20 if nothing happens when you click Accept.
  • If you are going to reference this tutorial anywhere, please credit it to me. I spent a lot of time on figuring out how to configure my iPhone 3G to connect to NUS Wireless network and I have put together this tutorial to make life easier for all NUS students.


  • The generator DOES NOT save your NUSNET UserID on this server.
  • At Step 10, when asked to key in your password, it is iPhone authenticating with NUS and NOT with this server.
  • In short, you can rest assured that NONE of your information is saved on this server.

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  • Zhou Wenhan

    Hi Lester,

    Are you an NUS Student? Me too. I can’t find connect to NUS network. Can only see NUSOpen instead. I will try it later.

  • Lester Chan

    Yes I am SoC Student, Year 3. You may need to be in certain areas to get NUS SSID. I can confirm there is NUS SSID in SoC and COM1

  • Zhou Wenhan

    hmm,…that was probably why. I was at YIH. Hey I submitted this as a story on Its my website and I am helping people discover things that are happening around them. Do take a look!

  • Lester Chan

    Thanks =)

  • Wang kao

    it works
    Using iPhone via NUS peap

  • Lester Chan

    Thanks for the feedback!

  • shadow

    can’t seem to get it work, do you kno why?

  • Lester Chan

    Ensure that your area has NUS wireless SSID first by using your laptop to check (of course your laptop need to be logged in to NUS instead of NUSOPEN to check)

  • Keith

    Hey Lester. Not sure if it really works? Cause it doesn’t work for me.

    I am using ipod touch 1st gen and have tried:
    1) to go back home and reconnect when i couldn’t connect to NUS (it did appear among the networks to connect). Either it didn’t get to connect or it connected after a while without the certificate , which will eventually connect back to NUSOPEN.

    2) rebooting my ipod and reconnect. I got to see the certificate but nothing happens after I click accept, except that the accept button went away.

    I am kinda clueless now but it looks great and promising, good work anyway -)

  • Lester Chan

    I can confirm it works because I tested on 3 iPhone 3G (including mine) and my own 1st gen iPod Touch.

    1) You may need to “forget” the NUSOPEN network because it may automatically connect to it.

    2) You may need to do that a few times to accept the cert.

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