This article applies to:
When using other applications simultaneously with E-Prime, it is often ideal to use a two-machine configuration to prevent any conflicts with Runtime.
When connecting via Ethernet, some considerations should be taken:
- Connect the machines on a closed network. This means that both machines are disconnected from the Internet and only connected to each other by a direct ethernet connection, a router, a hub, or a switch.
- Disable the firewall if the machines have issues communicating with each other. Alternatively, allow a specific application through the firewall, and open the appropriate, unoccupied ports. We recommend doing this if the machines are secure and not connected to the Internet.
- Disable all other network adapters in the Control Panel > Network and Internet > Network Connections section besides the relevant ethernet adapter. If you suspect a network traffic routing issue, PST highly-recommends the use of packet sniffers such as Wireshark (http://www.wireshark.org/) for debugging network communications.
- Ensure the IP Address does not change by setting a static IP Address. Make sure they are on the same subnet (e.g., Machine 1 has IP 10.10.10.42 with 255.255.255.0 subnet mask and Machine 2 has IP 10.10.10.43 with 255.255.255.0 subnet mask).
- Add in a NTP server to your closed network to synchronize the clocks between the two machines.
NOTE: Please contact your institution's IT department for more information on network configuration.
INFO: Locate Your IP Address and Ping Another Computer 
INFO: Windows Firewall Permissions with E-Prime 
DEVICE: How To: Socket Device Communication 
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