Super slow login on only one LAN client

Question

Hello,
I have a small LAN in my office. I have a gigabit router which connects to the rest of the world. Inside the router I have an imac with SL server, a 6 TB NAS, and 3 imac clients. All the devices pull their ip addresses from the router (i.e., 192.168.0.xxx).
The SL sever is 192.168.0.100 and has dns name prg-main.prg.local. I am convinced DNS is properly working on all of the machines. I checked it by opening terminal and typing "host prg-main.prg.local" and "host 192.168.0.100". The correct response is provided by host, i.e., the ip and domain name are mapping onto each other.
On imac one everything is perfect. All users can login no problem.
On imac two everything is not perfect. User logins are extremely slow (3-5 minutes). Once the slow login period is over things more or less work OK.
On the imacserver everything is not pefect. I can login as a local administrator adn administer the server, but if I try to locally login as a user from the OD server it also has the extremely slow login.
All users in my group can login fast on imac one and slow on imac two, so this is not user specific.
imact one and imac two have identical settings in the Network and Accounts panels of system configuration. Both have a green light next to the bound server under "login options" of accounts. Both have all recent system updates.
I am at my wits end - does anyone have any suggestions about how to fix this? It just started about a week ago and has no apparent connection to anything I've done.

Answer 1

Hi,
Have a look in the system.log file for a IOkit timeout.
I had a problem with my Imac from purchase, it turned out to be a problem with the firewire port.
If there is a IOkit Timeout during boot-up, check to see if your system profile can seethe firewire port okay(no warnings).
If there is a problem with firewire, you can disabling it by moving all the IOFire*.kext file out of the
system/library/extentions folder.
Hope this helps,
Steve