RetailEdge POS users sometimes call with problems either connecting a client (workstation) copy of RetailEdge to the database server on another machine. Many times this is a problem with either Anti-Virus (AV) software or a firewall that has been turned on. A quick way to check this is to open up a command (DOS) prompt in Windows by Choosing Run from the Start Menu and typing in CMD. Then type in telnet xx.xx.xx.xx port_number. For RetailEdge you would want to make sure that port 12005 is open. For RECON 12010. So for a server IP of 192.168.1.100 you would type in: telnet 192.168.1.100 12005
If you can't connect you will get an error message "Could not open connection to the host, on port 12005: Connect Failed.
Many users are familiar with the ping command. This command does not have the ability to check that specific ports are open. So this is not a good indication that the ports are not being blocked.
By default, Vista doesn’t install the Telnet client. You can install it by following these steps
1. Click Start then select Control Panel.
2. Select Programs and Features.
3. Select Turn Windows features on or off.
4. Select the Telnet Client option.
5. Click OK.
6. A dialog box will appear to confirm installation. The telnet command should now be available.