Q: iMAC running 10.6.8  connected to a network. Get error message when logging in

Hello, what kind of Network is it exactly?

Are you using Airport/Wifi, or Ethernet?

Are you trying to Netboot from the server then?

Find IP on computers...

http://www.helpdesk.umd.edu/topics/communication/ethernet/office/winxp/2882/

On this one In finder, select Go menu>Connect to Servers..., type in afp://ip.of.another.computer, like...

afp://10.0.1.5

afp://192.168.1.3

I wonder why I did not work?

<Link Edited By Host>

Sorry ceymi,

That type of website is strictly forbidden from being discussed on this forum.   It probably is best you can't access it.   Such actions may be illegal in your country, not to mention open yourself up to hacker attempts and unstable software.     Stick to the actual App Stores, and known high quality software stores.