ContributionsMost RecentMost LikesSolutionsRe: "A required certificate is not within its validity period" - eight or more users can't connect FYI Windows 7 machines are able to connect now. I didn't have to do anything special. Re: "A required certificate is not within its validity period" - eight or more users can't connect All Windows 10 users are able to connect. Windows 7 users are still experiencing this problem. Re: "A required certificate is not within its validity period" - eight or more users can't connect I have two users still having the same issue. Deleting the folder did not help. Re: "A required certificate is not within its validity period" - eight or more users can't connect It's been 5.5 hours!!! The service has been down since 8:00 AM EST. Re: "A required certificate is not within its validity period" - eight or more users can't connect Where do you check for status? I waited on hold with support for over an hour and hung up.