imac OS X Yosemite, version 10.10.5. Safari can't establish a secure connection to the server...
I am not able to open some websites, the message displays: Safari can't establish a secure connection to the server.... Some websites can be opened, most not. Does anyone know what needs to be corrected?
iMac
OS X Yosemite
version 10.10.5
iMac 21.5″, OS X 10.10