I ran into this exact same issue. Using both AAA and Certificate authentication the Windows 7 machines worked just fine. But once my customer started using Windows 8.1 those systems would fail to connect with the error message "Certificate Validation...
I have the exact same issue. Is there any fix for this? I could understand the answer would be a routed SVI, etc, if the contexts were in different VLANs but I am using a shared VLAN between contexts. I see the same problem as the original poster:...