TLS 1.0 and 1.1 are deprecated for use with Azure Cache for Redis


After March 31, 2020, Microsoft Azure will only support TLS1.2 for Azure Redis Cache and will stop supporting TLS1.0 and TLS1.1. Sitecore XP 8.x on .NET 4.6.1 and lower will not be able to connect and work with Redis Cache using TLS 1.0 or TLS 1.1.

For more details, have a look at

You may also be interested in the following article: Authentication issues with TLS 1.0 on Azure App Services.


To resolve the issue, consider one of the following options: