Download failed. cURL error 7

When I try to update Dashboard, I get this error:
Download failed. cURL error 7: Failed to connect to port 443: Connection timed out

I tried something I found on another thread. Adding these to the very end of the htaccess file:
php_value upload_max_filesize 1000M
php_value post_max_size 2000M
php_value memory_limit 3000M
php_value max_execution_time 180
php_value max_input_time 180

I added these at the VERY end, after # END Wordpress, so I don't know if that makes a difference (the thread said the END, so I took it literally). I also refresh the browser cache and tried again, still with no success.

Please advise. Thank you.