I had an issue where internet explorer wouldn't load certain https sites. Some worked and some didn't. I even checked the Local Security Policy for System cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing setting. It was set to disabled. It was suggested that I check the registry key to see if it was still set. It was set to 1 and not 0 meaning it was active. Here is what you can do to fix this.
Type regedit -> Navigate to HKLM\System\CurrentControlSet\Control\Lsa\ -> Locate the setting called FIPSAlgorithmPolicy and see if the value in the () is a 0 or a 1
If it is a (1) double click it and change it to 0. Click ok and now reboot. Once back into Windows, if it is still not working reset the zones settings to default and also do a full reset on internet explorer. It is under the advance settings. You will need to reboot one more time. At this point IE was back working as it should.
OS: Windows 7
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