Error setting up D450 port 1

[Guest DS_newbie]

High there, can anyone tell me how to get out of this? I have a DL450 and configured the baud rate etc for port 1. Now when I try to look at the configuration through DirectSoft I get the following error message... "Invalid setup for port number 1". DirectSoft displays an hourglass for a while before displaying the error message. Port 1 is set it up for DirectNet, 9600 kbaud, 8 data, 1 stop, odd parity, Hex. It will be a slave to one HMI panel which is the master node. This was working ok with a DL440 CPU and I have just upgraded it to a DL450 CPU (it is running the same program that the 440 was). Any ideas what could be wrong? And how do I get things back to normal?

[rlp122 4]

Try updating to the newest build. It should fix the problem.

[Guest Newbie]

Upgrading the SW didn't fix it. I had to power off the PLC before it would work. Nightmare!