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Mr. Tony RossAug 12, 2025
Why can I ping GridConnect NET485 but not Telnet to port 9999?
- BBrenda BrownAug 13, 2025
If you can ping the GridConnect Adapter but cannot Telnet to port 9999, it might indicate an IP address conflict on your network. To resolve this, turn off the device server and use the following commands in your computer's DOS prompt: 'ARP -D X.X.X.X' (replace X.X.X.X with the device server's IP address), followed by 'PING X.X.X.X' (again, using the device server's IP address). If you receive a response after the ping, it confirms a duplicate IP address. If there's no response, use the serial port to check if Telnet is disabled.