Kern - thank you for referring me to the white paper. I wish I had been able to read that about nine months ago - it would have saved me a lot of time in getting my gateway setup. However, after reading the white paper I didn't see anything which seemed to speak to my particular challenge.
Patti - thanks so much for the suggestions on the possible device path problems. I will go through this now and let you know what I find.
I appreciate your time and assistance!