It sounds like you need to tell RetailEdge the correct IP Address for the data server. RetailEdge uses a Client/Server architecture and each client workstation needs to know how to connect to the data server computer.
On the Server Connection form, enter the data server's IP Address. Usually, this will be a number like 127.0.0.1, 192.168.1.100, or 10.10.0.50.
On a single workstation system where the data server and the client are installed on the same machine, the IP Address should be 127.0.0.1.
To connect to a data server on a different machine, you need to know the IP Address of the data server computer. If you don't know the address, try the following on the data server computer.
1) Start RetailEdge on the data server.
2) Go to Tools / Settings / Server Connection from the main menu.
3) Click the LAN Info button.
4) The LAN Info button should give you at least two IP addresses. The LocalHost is 127.0.0.1. You need the other number. This is the data server's network IP address.
Once you have the data server's network address, you need to enter it into the client's Server Connection form. You probably do not need/want to make any other changes.
If for some reason this does not work. Double check your data. If it still does not work, then you may need to check the data server's firewall settings (we need ports 12005 - 12008) and any other security software that might be installed on the server.