Thanks for your post here. I can see where a time error could cause a problem with the 2FA feature. However I have been successful at implementing other 2FA plugins that seem to work fine working in conjunction with WF Security. I’m hoping for additional input here from others in the community who may be experiencing the same problems. The fact that all of my WP sites are experiencing this behavior tells me there is a possible issue with either my VPN host, the plugin or a recent possible automatic update the WP core.