PayPal required merchants to upgrade from SSL 3 to TLS (Transport Layer Services) since 3 Dec 2014 and officially cutting off at midnight Jan 12,2015. Therefore you may have experienced problems connecting to Paypal, even if you have upgraded the SSLv3.0 certificate to TLS certificate, it may not work due to your PayPal module's coding, telling it where to connect to. You can solve this by upgrading to Paypal module 3.8 or just change your current module's coding like I have below.
You'll find the coding in ( public_html/modules/paypal/api/paypal_connect.php )
Coding.pdf