SSL mismatch error using ISP-provided IP address but not VPN IP address

I keep seeing error messages reporting issues with SSL (Chrome, IE, Mozilla) when clicking on links in the YAHOO homepage to stories from different YAHOO sites (screen, autos, movies, hsrd, etc.) CHROME reports "A secure connection cannot be established because this site uses an unsupported protocol. Error code: ERR SSL VERSION OR CIPHER MISMATCH." MOZILLA reports: "Unable to Connect Securely. Firefox cannot guarantee the safety of your data on autos.yahoo.com because it uses SSLv3, a broken security protocol. Advanced info: ssl_error_no_cypher_overlap". The weird thing is that when I use a VPN (HotSpot Shield)... there is no error and I can access all these pages/sites without any problem or issue! Any ideas on why this happens? Is the SSL "mismatch" on my ISP's side, and if so, should I have any security concerns? Tks.