[wpmu-trac] [WordPress MU Trac] #1106: WPMU Login endless loop. Issue with Internet Explorer

[WordPress MU Trac]

#1106: WPMU Login endless loop. Issue with Internet Explorer
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 Reporter:  enadhazeem  |       Owner:  Development      
     Type:  defect      |      Status:  new              
 Priority:  high        |   Milestone:                   
Component:  component1  |     Version:                   
 Severity:  normal      |    Keywords:  login IE Explorer
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 I have installed WordPress MU 2.8.4. The installation was successful and I
 received my username and password.

 The problem is that when I tried to login using Internet Explorer Ver. 8,
 WordPress goes into an endless loop taking me back to the same login
 screen without giving an error message.

 Now, I tried to type a wrong password, then I got this message:

 ERROR: Incorrect password. Lost your password?
 ERROR: Cookies are blocked or not supported by your browser. You must
 enable cookies to use WordPress.

 Well, I then used '''Firefox''' and '''Google Chrome''' to login using the
 same password. It worked fine. So the problem seems to be only with IE.

 Trying to get to the root of the problem, and because the majority of my
 prospective users are probably using Internet Explorer, I tried to login
 using different PC's and different versions of IE. I even used a different
 operating system (Server 2003). Still the same problem.

 Just to eliminate any possibility of anything else (cookis, etc) I even
 formated a new pc using Windows XP.

 Still the same damn problem.

 Just to be sure it was not a hosting issue, I have a duplicate
 installation running at another hosting company on a completely different
 server, IP, etc. Still the same problem.

 Needless to say that I even tried to delete the installation and start
 witha fresh new copy with a bare-bone, no plugins. The same problem.

 Now I tried to search through the various forums. It seems to me that
 other people are having reporting the same problem.

 Since I am new to the WordPress MU business, I just cannot believe that an
 issue like this is still around after countless of development hours on
 WPMU and all these complains.

 Now bear in mind that not only me, the admin was having this problem, but
 any new user that tries to create a blog had the same problem.

 Go ahead and try it yourself at [http://co.ps]

 Any help would be appreciated because I have wasted a good week trying to
 solve this issue without success.

 Please see the thread I posted at
 [http://mu.wordpress.org/forums/topic/14223?replies=9]

 This seems to be an issue with IE. It somehow does not allow two-letter
 domains "co.ps"

 I have another installation [pal24.net] that I installed today 5/9/2009.
 It worked fine with all browsers, including IE.  This new installation was
 hosted on the same server as co.ps

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Ticket URL: <http://trac.mu.wordpress.org/ticket/1106>
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