RHEL7 - Samba

I'm having trouble with a Linux Samba share after migrating a system from RHEL 5 to RHEL 7.

My current configuration is below.

[global]
workgroup = DOCS
security = share
[data]
comment = Data
path = /export
read only = yes
guest ok = yes
browsable = yes

In RHEL7 the service will fail to start. I can get the service to start if I change it to "security = user", but that's not what I want because it will force users trying to connect for logins. I need this share to be completely open, and Windows users can't be prompted for a username or password whatsoever. Has anyone run into this, or know of a work around?

I see in the new man page that "security = user" is deprecated. However, I must have the share completely wide open to guests.

Thanks

In RedHat 7, the following would be sufficient to open the share data living in path /export to anyone, assuming that the right permissions has been applied.

[global]
workgroup = DOCS
security = user
map to guest = bad user

[data]
comment = Data
path = /export
read only = Yes
guest ok = Yes
browsable = Yes