I am having problems with getting SSO to work across sub domains, see my earlier post for additional details...
http://forums.asp.net/t/1667794.aspx/1?SSO+using+separate+Webforms+application+and+MVC+application+on+the+same+box+
I have all the appropriate web.config settings (machinekey, etc). The two sites are on the same box (different websites) and are using two seperate custom membership providers and two different login forms, but point to the same database. The providers are built on the .Net MembershipProvider class. When I log into abc.com and use Chrome's developer tools I can see the session cookie is created per my web.config settings. When I click the link to go to xxx.abc.com I am presented with the login page even though I can see that the original session cookie was carried over from abc.com. If I hit the link to go back to abc.com it ...
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