Hi!
We have a 3 servers (domain.com, apps1.domain.com, apps2.domain.com) that was working for more than 3 years using the cross-domain authentication with SQL Membership. After a windows update happened last week, everythig stopped working and not reading the authentication cookie. All these 3 servers have the same machine key configuration. After rolling back all the windows updates then everything started working again.What could have change and what can we do to get our authentication setup to work even after the Windows update. Any feedback is appreciated, thank you.
Here is our environment:
Windows 2008
IIS 7.0
Framework 3.5 and 4.0
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