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I have a Windows Server 2008 R2 running remote desktop for me to connect to from my Windows 7 laptop when I am out of the office.
So when I am at home, I can log into the server using remote desktop via the IP address of the server just fine.
Now when I take my laptop to the office, on the server's local network, it won't let me connect via IP, like it used to. It will connect perfectly fine using the machine name, however.
This just started happening on Friday - I connected to the server Friday morning via IP from the local network. A few hours later, it would no longer accept connections via IP address, even though I had changed nothing!
1Sounds like the DHCP lease expired, give it a static IP on your local network. – Supercereal – 2012-06-05T02:35:52.580