https://johnnypotterblogs.wordpress.com/2019/10/18/how-to-fix-chrome-establishing-secure-connection-takes-too-long/
HOW TO FIX CHROME ESTABLISHING SECURE CONNECTION TAKES TOO LONG
Establishing secure connection” is the text which might appear in theChrome web browser. If it is taking too long, then you have a problem. In case the site is taking a lot of time to open, and Chrome is stuck at establishing secure connection, apply the fixes given below.