I'm brain-dead! There is a check box "Require login to access form" on the form editor. I just had to un-check this.

Short Answer

If you think that you are being blocked because your ISP share IPs among a lot of users (shared public IP address):

1. ask your ISP if they could assign you
   1. to a different group of users
   2. a dedicated IP address
2. change of ISP.

Explanation

From "Unusual traffic from your computer network"

I shouldn't be getting blocked

Google Search blocks IPs, IP ranges, and in some cases, whole ISPs, when a large percent of the traffic entering our networks is abusive.

If the blocking started within the past few weeks, it is likely to be related to the use of the "Hola VPN" browser plugin, or a program for Mac/Win/Android/iOS. The best thing to do is to uninstall the Hola VPN from your computer or network.

If you are an Internet Service Provider (ISP), explain to your users why it is important for them to uninstall this type of VPN. When the abuse hitting our network stops, we automatically stop blocking the IP(s)/ISP(s) that were sending the bad traffic. Learn more about Hola VPNs here.

Unfortunately, sometimes non-Hola traffic gets looped in with the abusive traffic. We are working on a way to change our protections so that we'll only block Hola traffic in the future.