Membership.ValidateUser always returns false after upgrade to VS 2010 / .NET 4.0

Question

Not sure whether this pertains to VS 2010 or to the upgraded framework, but... we are using the Oracle membership provider to authenticate users. Prior to the upgrade everyt

Answer 1

The answer (according to this post) is to specify hashAlgorithmType="SHA1" in the Web.config:

This did not solve the problem for existing users, but newly created users can log in now.