Hi amazed:
Assuming you are properly closing all the of the handles you are opening in your program when you stop it, you should be able to remove power from your network, change the address, then just power back up. From there you can run "simple who" from MAX and you should be set to go. You shouldn't have to physically take the board out of your computer, at the most you should only have to reboot your computer, but even this shouldn't be necessary.
Emilie S.
Applications Engineer
National Instruments