safari can't establish a secure server
I just started getting this when going to sites I've used for years. Haven't made any changes, so can anyone tell me how to fix it?
iMac 21.5″, OS X 10.11
Question marked as
Go step by step and test.
1. Quit Safari, launch Safari holding the Shift key down.
https://support.apple.com/en-us/HT203987
2 Remove anti-virus software if installed on your Mac.
3. If Safari doesn't open a webpage or isn’t working as expected
https://support.apple.com/en-us/HT204098
4. If Safari says it can't establish a secure connection, or the website is using weak encryption