Safari Version 14.0.3
Since I updated to Big Sur 11.2.3 I cannot open certain websites and receive the message that Safari can't find the Server. This is now happening across devices, iPhone 11 and iPad too. I contacted the website providers and they cannot replicate the error. I completely re-installed Big Sur OS and the problem is still there.
Is there a way I can go back to the previous version of Big Sur?
I am using MacBook Pro (15-inch, 2019)