The settings stick and I put them back on Apples default settings with the box checked this morning. (I had tried them both ways yesterday) I had provisioned the old modem last night and it still didn't work last night. Turned machine and modem off for the rest of the evening. Today all is working fine. I believe the problem has something to do with Comcast. The reason I got the new motorola was they told me I was getting thousands of disconnects. I never saw them on my end. The new modem also was getting tons of disconnects which I can't perceive on my end. Comcast support this morning was close to ridiculous as I tried to find out what they meant by disconnects. She told me they would charge as I own the modem if they sent someone out. Anyway I thank all that sent in suggestions. I still don't know what the problem is, and for the time being all works. Comcast has dropped a lot in my opinion, but it is the only game in town.