The certificate is expired. If you use an ACM-issued certificate, ACM tries to renew the certificate automatically. If the certificate is expired, you must issue or import a new certificate. After a new certificate is issued, confirm that your DNS records are pointing to the AWS resource, such as a load balancer, where the ACM certificate is used.
Microsoft specialists reported that “There is a problem with this website’s security certificate” pop-up is commonly triggered by incorrect date and time settings of the system. Date and time settings can be modified without your knowledge by malware or other third-party software. To check that, you should:
Has the certificate expired? Just like a drivers license or a passport, a certificate will have 2 dates listed in it: a date issued, and date it is valid to (when does it expire). Fun story: I was ... Expired definition, to come to an end; terminate, as a contract, guarantee, or offer. See more.
About The Author: Phil Hart has been a Microsoft Community Contributor since 2010. With a current point score over 100,000, they've contributed more than 3000 answers in the Microsoft Support forums and have created almost 200 new help articles in the Technet Wiki. For example, to catch an invalid date in a certificate, you turn off the SXH_SERVER_CERT_IGNORE_CERT_DATE_INVALID flag as follows: All certificate errors. The date in the certificate is invalid or has expired. Mismatch between the visited hostname and the certificate name being used on the server.