ContributionsMost RecentMost LikesSolutionsRe: "A required certificate is not within its validity period" - eight or more users can't connect Downloading the digicert fixed our issue here. Thanks for the assistance! Re: "A required certificate is not within its validity period" - eight or more users can't connect This is the new error message I'm getting this morning. Had the same issues that others had yesterday, and the suggested fixes did nothing. Any help would be appreciated.