This means that the TCP/IP settings on this workstation match another TCP/IP setting from another computer or printer on the network.  Following is a quick method for checking to see if a TCP/IP address is already in use:

Click on the Start button and choose Run.  Type “command” and click OK.  A DOS prompt will appear.  In the window type in the word ping followed by a space then your IP address, changing the last digit to some other number. 

EXAMPLE: If 192.168.1.10 is your IP address try typing ping 192.168.1.52 then press Enter.  If you receive no ping replies back you should be able to use .52 for your IP address. If you receive a reply, try another number. Repeat until no replies are found.

If you are not familiar with IP addressing, contact a Systems representative for assistance.