Shared Forms Auth cookie not working on subdomain
I have a domain www.foo.com and sub domain www.bar.foo.com . A user logs in at www.foo.com and is redirected to www.bar.foo.com . The site at the sub domain is a different website, and even though the cookie is being passed across correctly in the subsequent requests to both the primary and sub domain, the authentication on the sub domain isn't working. Both sites share the same machine key information and the web config for the two sites are configured as: www.foo.com: <authentication mode="Forms"> <forms timeout="120" protection="All" slidingExpiration="true" name=".authcookie" domain=".foo