How to Refresh a Users Session without them Logging out.

We have Dynamic Roles being assigned after a page is updated by end-user. Issue: Users don't see the security changes until they log out and log back in. Is there anything that can be coded so their 'session' automatically resets - immediately showing the menu access that new Role(s) give? Tried %Response.Redirect, ViewURL, etc to reload Homepage but with no success. It always reloads with old/original security in place until they sign-out.