Without this, the iPhone will keep throwing up a "login" sheet when trying to connect to an open wireless network. If you then cancel this sheet, it will disconnect from the wireless network. This might only be a problem when running a captive portal type arrangement like we are here.

Originally Posted by dotnet

Why was this causing problems on your network?

I'm not using the captive portal for log in. Just to display instructions and offer the configuration profile for download. The new log in behaviour makes this hard to achieve, because if you don't log in, the iPhone will disconnect from the WLAN.

i also face the same problem...,, zbaron...where i should put the code?..., and how to find the index?..

A little more digging (with tcpdump and wireshark) find that the iPhone is requesting the URL:

Code:

http://www.apple.com/library/test/success.html

to see if it has open Internet access.

Originally Posted by dotnet

Why was this causing problems on your network?

This functionality is quite welcome, and allows the phone to automatically join WiFi networks that require captive authentication. By trying to visit Apple it forces the captive portal to spring into action and it will then provide the stored credentials to log you into the network. Access to the WiFi network will just work from that point onwards.

Prior to verion 3.0, in order to use the WiFi network at work, I had to visit some web page using Safari, got redirected to the login page and had to type in my credentials before being able to vistit the App Store, or use NetNewsWire etc. Now, with 3.0, it is fully transparent and seamless.

Cheers
Steffen.

Except, after I enter the UID/PID my authenticator send a pop-up with a 'Success' message and an OK button. The thin browser isn't allowing the popup, I can't click OK, so I cannot connect to my office wireless network anymore.

This would be a very nice feature, but they have to allow for me to click past the 'success' message.

I don't disagree.
It's one thing to have a Failed message popup.
But a successful login should have just let me in and continue to my requested page.

I won't have much luck getting our IT dept to change their brain-dead ways.
I probably won't have much luck getting iPhone to allow the 'success' popup either.

Too bad I can't override the iPhone feature for certain sites and go back to using Safari to authenticate like before 3.0.

Originally Posted by zbaron

To get in just before the general release of OS 3.0, i've found a fix to stop the "login" sheet from appearing when connecting to the open WLAN.

I've inserted the following code into the top of the index page to return a 400 response to the CaptiveNetworkSupport UA.

Code:

<?php
  if (preg_match ("/CaptiveNetworkSupport/", $_SERVER["HTTP_USER_AGENT"])) {
    header ("HTTP/1.0 400 Bad Request");
    exit ();
  }
 ?>

We've tested this on the 3.0 GM and it's working fine.

Hello, I'm currently running an iPod Touch 2G with the 3.0 OS and I'm facing the same problem at my college. Unfortunately my english is not very well and I don't understand how I should act now.

I need this fix to prevent the browser from opening after connection to the public network. Would it be possible to write an "user friendly" manual how to do it? That would be very nice.

Greetings, sMiNt