Okay, more minutes of my life I'll never get back with a Tech rep from ATT. First I tell him what's happening and then after clearing Internet cache and cookies (?HUH) and him telling me to clear cache and then if that doesn't work, factory reset. I go out and it still does not switch to Data when I'm out, but rather tries to connect to nearby comcast Wifi hotspots. I'm not a comcast subscriber here. I also told him how the phone was scanning every few seconds for Wifi connections, even though I was at home connected to my Wifi. Which I thought was weird. He said normal.
So I look online and figured it out myself from the great Android Central.
I found this thread:
http://forums.androidcentral.com/sa...oes-my-note-4-automatically-connect-wifi.html
Sure enough, check my settings and uncheck the Network Notification box and also always allow scanning. Problem fixed. Went out and was able to use Google search without having to switch off my Wifi. I should have known to look deeper into the wifi settings, but this is a warranty replacement phone, so it was already that way when I received it. I'm starting to show my age, getting forgetful. Just glad I found that thread or I would have done a factory reset for nothing. Plus the guy said if that didn't work, get another replacement phone. These are the guys helping Us when we need help. If you ask me, they need to know this stuff if they are working tech support. Pretty lame. Hope the link helps you ToddL.