Twobob, thanks again for the suggestions.
I think that I've already set up a static ip address for DX (as per the TinyApps.org tutorial). I'm reposting the screenshot that shows these configuration below.
Also, I'm not exactly sure how I can find the ip address for my DX. I've tried pressing DEL on the HOME screen of my DX and then entering ;711, followed by RETURN. However, this simply prompts me with the message ";711=711." How exactly do you find the ip address info via the device's settings tab?