It’s not a sign that Facebook blocked your IP. When your IP is blocked error message is different. It’s a sign that your server admin or hosting provider messed something up with your server DNS.
Please see the answer in the FAQ – #2.9:
http://www.nextscripts.com/support-faq/#a29
First thing we did is re-authorized the account but it did not help…
The authorization returned: [0] => Could not resolve host: graph.facebook.com
Since we run the script with several websites on this IP, we tried it on each website – each with different FB user for auto posting and different FB app. None from this IP worked…
Websites are on a dedicated server with several IPs running on it and none of the admins have worked on it overnight. We run several websites with your script and the script works fine on the rest of the IPs except this one. Hence we suspected IP block by Facebook…
No DNS changes has been made. If indeed a server update has messed with anything, where should we start looking:
1) plugin settings
2) wordpress settings (each instance currently runs on a separate virtual machine)
3) Php settings
4) Or apache settings
Thanks
I am sorry, I gave you the wrong FAQ number.
Please see the answer in the FAQ – #1.10:
http://www.nextscripts.com/support-faq/#a110
Please go to the plugin’s Help/Support/About Tab and click “Test SSL/HTTPS”. This will give you plain PHP script to recreate this error. You can use this script to work with your admin on the issue.
Thank you
Checking cURL
It was installed and running
Let’s see if it has crashed
Will report shortly…
… Restarted Apache
cURL kicked in
Everything is working
Thanks for your help