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users sporadically can´t login in to useraccounts

324 Views 2 Replies Latest reply: Feb 18, 2013 6:55 PM by Don Roedl RSS
ryback42 Calculating status...
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Jan 21, 2013 6:07 AM

today I come up with a strange problem.

 

my infrastructure

10.6 server (actual with all updates)

running services: afp, softwareupdate, ical, open directory

50 macs (pros, macminis imac, books etc.)

400 users

 

the problem

Since december 2012 all systems including the server where on 10.5.6.

Because of necessary software that don´t run under 10.5 I had to upgrade the clients and therefore I upgraded the server also.

Now I have a strange problem. There is one room with 15 Macpros - our main teachingroom. In this room, and it´s only there, sometimes user can´t login. They get the message that there is a problem with there account and therefore they can´t login. Than the user takes another machine in the room and there he/she can´t login but don´t get a message, the login-process just hangs, than the user tries another machine and there he/she can login. Sometimes the user needs two tries, sometimes five and sometimes it works without the problem???

 

It´s not depending on the user or the machine and I have absolutely no idea where the problem lies.

But it´s only in this room. My first idea was the managed hp switch in this room, but it´s not the problem.

 

Maybe it is about an correspondending application that is disturbing the login-process. But I´m not sure if this is possible.

As usual the Apple suport can´t help. Restart & install new are the commom solutions. hahah.

 

So it´s up to the community. Any suggestions? Ask me anything you need for other ideas. I don´t know what to do and my students are really upset about this problem. But I have no solution till now.

  • Don Roedl Calculating status...
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    Feb 18, 2013 6:55 PM (in response to ryback42)

    Interesting one, Ryback. It really looks like network when you mention bringing another known good workstation into the lab and it then exhibits the same/similar prolbem. How did you rule out the HP Switch?  How do forward and reverse DNS lookups performed with Network Utility work in this room? Are they ok? What does the Console log look like immediately following a failed login?

     

    I presume users that work in this lab have no problem when logging into their accounts from workstations at locations other than this lab...is that correct?

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