About two (2) weeks ago, my company purchased 4 new PC for the existing Network. For testing purposes, I built one (1) computer up with Windows XP Pro and joined it to the W2K Domain. Everything went well, after installing the software that was needed, I began to notice that it had the same IP Address as another computer. This is where the problem started. The TCP/IP Setting are setup correctly for the workstation, it has a dynamic IP to start off with and when to breifly solve the problem I changed it to a Static IP Address. I did not get a problem with the IP Addresses conflicting but it did still work with the same IP Address as another WinXP Pro computer. After discovering that certain new versions of software couldn't play nice with each other. I reformatted the hard drive, reinstalled Windows XP Pro and tried to join it to the W2K Domain again but with no luck. Error message was a standard "Cannot find Domain Controller, would you like to try again or readd another time" I tried to add the computer to the network after the install had finished but again with on luck. Error message "Domain Controller of your Domain cannot be contacted. Please check if you have typed in the correct spelling etc etc" It is spelt correctly. After this I tried to add it manually, going to the server and adding it in to the AD and even the DNS and giving the workstation a static IP address. Still no luck.
I have other computers, new and old that have been purchased before these that are connected to the Domain and are working fine, expect when Sales use them the wrong way. I have tried all four (4) new computers and each have the same problem.
I have tried to look through Technet and on here but some come close and a lot don't. If anyone has any ideas, please let me know.
Cheers and thank you