Issue
During initial setup, the incorrect ethernet IP address or subnet mask was entered. Now when rebooting the UNC, I cannot reconnect to it using the I/A Series R2 Admin Tool. How can the incorrect information be changed?
Environment
UNC-520 or UNC-410
Cause
Network connectivity cannot be established if the IP address or subnet mask was entered incorrectly. Likewise, if an invalid subnet mask is entered, the UNC may not boot completely (or at all).
Resolution
The following information is provided in more detail in the section "Determining Network Settings", subsection "JACE-4/5" of chapter 3 of the Niagara Networking & Connectivity Guide. This document is provided with and installed with the I/A Series (Niagara) R2 software.
Required hardware:
- Serial Cable
- Terminal Emulator software on computer (such as "Hyperterminal" or "Putty")
Procedure:
- Configure the Terminal Emulator to run at 9600 baud, 8 bits, one stop bit, no parity, hardware flow control
- Jumper the upper two pins of the Console "MODE" connector, located in the upper right corner of the UNC-520 circuit board (See photo at right).
- Connect the terminal emulator via a UNCC-405 serial cable to port COM1 on the UNC and power-cycle the UNC.
- Wait for the UNC to complete its bootup process (do not break out of the boot process).
- Check the displayed information to determine what IP address and subnet mask was entered.
Power cycle the UNC and when the console display shows "Press any key to stop auto-boot"., press the space bar.
Follow the procedure in the section "Determining Network Settings", subsection "JACE-4/5" of Chapter 3 of the Niagara Networking and Connectivity Guide for the procedure to step through the settings changing them if necessary. Please note that the figure 3-8 may not include all lines of information shown for your UNC.
If the serial console is showing any errors after you have verified the IP address / Subnet mask entries, please provide product support with a text copy of the serial console output showing the error messages.
