Security concerns aside, we require a share that had Read access for non-domain joined uses that connect as guest.
Under Server 2008R2 we simply changed 'allow everyone permission to apply to anonymous users' in security policies, enabled the Guest account, set share to everyone, security to everyone on the folder.
I've tried many things in Server 2012 with no resolve, and found numerous postings of people having this issue but some stating they managed to get it working. Their solution didn't work for us.
Additional settings I've tried on local security policy (gpedit.msc)
Restrict anonymous access to named pipes disable
allow anonymous access to named pipes (added our share name to the list)
allow anonymous access to shares (added out share name to the list)
We've restarted the server after each security change.
I know the remote client is coming in as guest by watching the connection using the ShareWatch utility. The client is either WindowsXP, Win7, or Win8, all of them can now connect to the server and see shares, but opening the share in question give an error that the client does not have permission.
Server: Server 2012 R2 Standard
Tested clients (all non-domain joined): Win7, Win8.1, Server 2003, Server 2012R2
It's strange as Server 2008R2 works and I can't find anything has been changed to 2012. I even installed the File Services role that gives the Server manager wizard for creating shares and settings quotas etc. I went through it's steps and did everything for a guest share, same issue.