Provide read-only viewer access to authenticated users

I have configured ldap with concourse and would like to provide read-only viewer access to any authenticated user. I will be restricting other roles (like member or owner) based on which group the user belongs to.

However, I am not sure how to provide read-only access to authenticated users. I get the following error message:

failed-to-issue-concourse-token”,“data”:{“error”:“user doesn’t belong to any team”,“session”:“5.4”}}

Please advise on how to do this.