Adhavan,
Yes, the AEP model of Conduit is the one with Node-RED. The Ethernet lights being unlit is definitely suspicious. Just changing the password shouldn’t affect the Ethernet interface. Did you change any network settings also? Can you try that ethernet cable with any other device to confirm your network connection is working?
To help debug, you can access the Linux console using the serial debug port behind the front panel (access instructions). From there, you can issue the ifconfig
command to see your network interface details.
-Brandon