Hello Jack,
it’s possible that the Firewall automatically changed from “Learning mode” to “Enabled” before it had a chance to learn how you normally use your WordPress admin. Can you try this
1. Go to the Wordfence “Firewall” page and set the firewall to “Learning mode”
2. Surf around normally on your site and do everything you would normally do
3. Go back to “Firewall” page and set the firewall to “Enabled”
You can also try keeping the Firewall in “Learning mode” for a few days or a week.
Another option is to check your servers access and error logs to get more information about what is causing the 503 errors.
Thread Starter
Jack
(@moxie)
It was already in Learning Mode, but now I’m beginning to doubt if the combination of these two plugins is the problem. I do see this error in my log, while I have the option to scan for DNS changes disabled:
[Tue Jun 14 07:25:57.502061 2016] [:error] [pid 82200:tid 34594693120] [client 66.249.79.175:26413] FastCGI: server “/var/run/php-fpm/php56/php-cgi” stderr: PHP message: PHP Warning: dns_get_record(): DNS Query failed in /sites/jacktummers.nl/www/wp-content/plugins/wordfence/lib/wfUtils.php on line 1164
Could this have something to do with using Cloudflare?
If you look at your Wordfence “Live Traffic” do you see a bunch of different IPs there or are they all your own IP?
Thread Starter
Jack
(@moxie)
I still have this error in my log, and to answer your question, I see a whole bunch of different IP’s. Is that good?
Yeah that’s good. It means Wordfence is fetching IP addresses in the correct way. How often are you seeing this error in the log? Is it like once per day or 500 times per day?
(The dns_get_record error has to do with Wordfence trying to look up the host of a certain IP and getting a response that it can’t interpret.)
