I have iPhone 5s with ios 7.0.6. A few times I've travelled to Solvang, CA, I don't have internet access. I do see all full signal bars, and 4G indicator. I've done network reset while on location, close all running app, and turn on and off the phone, still no data access. When I return to Santa Barbara, CA area, it works fine.
This has been happening every time when I travel to this location since I got my new iphone from the Apple store in end of January.
Your coverage map indicates there is solid coverage, and I have visual confirmation with the full signal indicator, I can dial voice, except there is no data access.
Can you confirm if this works in the area?
If you want address, here's some:
438 Alisal Road, Solvang, CA 93463
1639 Copenhagen Drive, Solvang, CA 93463
188 East Highway 246, Buellton, CA 93427