After a system initialization by dip switch 8, then entering IP information via Flash 46, Ethernet communication works fine with our MPB2 across our network via hyper-terminal. After uploading an existing database and doing a system reset via Flash 80, the Ethernet port ceases to function when the uploaded system come live. Flash 46 is used to reenter the IP information but the port is non responsive to hyper-terminal and pinging. The system RS-232 port and modem function normally.

I have tried various suggestions in other posts, including "set the operator station ip/mac test in flash 50/51 to any", but none restore the Ethernet port operation.

Is there a setting in the uploaded program that could be overriding the Ethernet port? The version query replies with 2.20-2FE3 XTS BASIC.