Microsoft has acknowledged a new issue affecting several Windows versions that could lead to Transport Layer Security (TLS) and Secure Sockets Layer (SSL) connections intermittently failing or getting timed out. The bug is caused by the security-related enforcement for the CVE-2019-1318 TLS spoofing vulnerability. Microsoft says it’s not recommended to disable EMS since this TLS extension was introduced to prevent man-in-the-middle attacks. Microsoft provides the following two solutions for mitigating the intermittent TLS timeouts and failures experienced by some Windows users.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-shares-solutions-for-windows-tls-failures-timeouts/