First download “SSL Diagnostics Version 1.1 (x86)” and find out why your SSL does not work… (link below)

http://www.microsoft.com/downloads/en/details.aspx?FamilyID=cabea1d0-5a10-41bc-83d4-06c814265282&displaylang=en

If first solution does not work, try below:

1. Set the correct permission for Machinekey folder C:\Documents and Settings\All Users\Application Data\Microsoft\Crypto\RSA\MachineKeys
2. Add administrator and system Full Control Permissions.
3. Restart IIS

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