Change WordPress user roles and capabilities › Forums › Restrict or Permit access inside WordPress – how to › New User dont have access to the admin dashboard › Reply To: New User dont have access to the admin dashboard
Try to deactivate all plugins and login under the test user. Will it help to achieve wp-admin? If Yes, activate plugins back one by one and make new test to isolate plugin which blocks access of new role to wp-admin. There are some plugins which has own settings – you have to select the roles to which you allow access to the admin back-end.