I have a Windows XP Pro SP2 machine whose IP address is, for example, x.x.x.75, but when I type ping "computername" in a command prompt, it is looking for x.x.x.34. This computer does not have a static IP address, but it is dynamically assigned (the lease lasts for 3 days according to ipconfig). I am assuming that x.x.x.34 is the old IP address for this computer and it is not being updated on the network.
I am able to log into my LAN with this machine and access all network resources and I have successfully released and renewed the ip address. I was using this machine as an IIS server to host a small intranet site for the last 3 months up until October 12th (the last time I used it), but when I attempted to use it on October 18th I could not access the site (because of the IP address issue) from a PC on our network. The only event that occurred during this time was that we lost power at our site for a few days. I have another Win XP Pro SP2 that I am using as a test IIS server that is working correctly, and I compared all of the services, event log entries, IIS configuration and ip config and they are virtually identical.
I am able to see the computer in Windows Explorer and I am able to access the intranet site if I use http:\\x.x.x.75\index.htm
instead of the usual http:\\computername\index.htm
Due to the current migration of our local tech support, I do not have physical access to the DNS server or any other. Any help will be greatly appreciated.