diff --git a/releases/net471/dotnet471-known-issues.md b/releases/net471/dotnet471-known-issues.md
index 4f723be..2b614d4 100644
--- a/releases/net471/dotnet471-known-issues.md
+++ b/releases/net471/dotnet471-known-issues.md
@@ -18,3 +18,4 @@ This document lists the known issues that you may experience after you install t
 - [623552 - BCL - Assembly versions higher than 4.0.0.0 for System.IO.Compression.ZipFile cannot be loaded without a binding redirect](https://github.com/Microsoft/dotnet/blob/master/releases/net471/KnownIssues/623552-BCL%20Higher%20assembly%20versions%20that%204.0.0.0%20for%20System.IO.Compression.ZipFile%20cannot%20be%20loaded%20without%20a%20binding%20redirect.md)
 - [523633 - Setup - Application crashes occur when running on the .NET Framework 4.7.1 after upgrading from Windows 10 Anniversary Update to Windows 10 Creators Update](https://github.com/Microsoft/dotnet/blob/master/releases/net471/KnownIssues/523633%20-%20Setup%20-%20OS%20upgrade%20to%20Windows%2010%20gets%20the%20product%20in%20bad%20state.md)
 - [534719 - Networking - ServicePoint.ConnectionLimit default behavior with loopback changed unexpectedly](https://github.com/Microsoft/dotnet/blob/master/releases/net471/KnownIssues/534719-Networking.ServicePoint.ConnectionLimit%20default%20behavior%20changed.md)
+- [663475 - Setup - Applications that rely on TLS 1.2 strong encryption experience connectivity failures after a Windows upgrade](https://support.microsoft.com/help/4458166)