TLS v1.2 connetion error for application

Hi Team,

I want to upgrade my Website and Application ssl/tls version to 1.2 minimum. Whenever i am going to set version 1.2 my website is working but apllications are not working. I can not able to login application. Please help me in this matter.

What applications? Are they old and without support for TLS 1.2? Older iOS and android versions for example may not support this.

You can either reduce your TLS requirement, or update these apps/devices.

My Application is windows application developed in microsoft .net framework. How can I find that my application is support for TLS1.2 or not?