I’m having the same problem. It started today (April 2 2015). I am also on Arvixe. I checked with them and they tell me that ports 80 and 443 are NOT blocked.
According to the Wordfence System Info for PHP, curl is present.
Here’s the Wordfence Connectivity Test:
DNS lookup for noc1.wordfence.com returns: 69.46.36.8
STARTING CURL http CONNECTION TEST….
Curl connectivity test failed with response:
Curl HTTP status: 0
Curl error code: 7
Curl Error: Failed to connect to noc1.wordfence.com port 80: Connection timed out
STARTING CURL https CONNECTION TEST….
Curl connectivity test failed with response:
Curl HTTP status: 0
Curl error code: 7
Curl Error: Failed to connect to noc1.wordfence.com port 443: Connection timed out
Starting wp_remote_post() test
wp_remote_post() test to noc1.wordfence.com failed! Response was: Connection timed out after 10003 milliseconds
Starting wp_remote_post() test
wp_remote_post() test to noc1.wordfence.com failed! Response was: Connection timed out after 10002 milliseconds
