Connection to www.remarpro.com Refused
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I have worked on this problem for two days with our ISP, who hosts our dedicated server. This problem affects all of our clients’ WordPress sites we are hosting on our server, as well as our own.
The bottom line is that for some connections, but not all, www.remarpro.com refuses connection from our server. Example: This WordPress site <https://www.citywheelchairs.com> hosted on our server reaches out to check the version of WordPress and installed plugins, and says they’re all up-to-date. But clicking on “Add Plugins” gets a “connection refused by www.remarpro.com.” Same problem with RSS feed. Once I get that “Connection Refused” message, an “Upload Plugin” button appears, and I can manually upload and install.
Our ISP support has tried every test and setting, studied the PHP error logs, and we aren’t getting any errors.
Health Check is all good until it tests the connection to WordPress:
Communication with www.remarpro.com: Unable to reach www.remarpro.com at 198.143.164.252: cURL error 7: Failed to connect to www.remarpro.com port 443: Connection refused
HTTPS status: You are accessing this website using HTTPS.
Secure communication: Your WordPress install can communicate securely with other services.
Scheduled events: No scheduled events have been missed.
Background updates:
No version control systems were detected.
Your installation of WordPress doesn’t require FTP credentials to perform updates.
Couldn’t retrieve a list of the checksums for WordPress 4.9.2. This could mean that connections are failing to www.remarpro.com.Now, here’s the evidence that it’s www.remarpro.com refusing these connections. The ISP duplicated the cURL call to Google, with success:
root@server [~]# curl google.com
<HTML><HEAD><meta http-equiv=”content-type” content=”text/html;charset=utf-8″>
<TITLE>301 Moved</TITLE></HEAD><BODY>
<H1>301 Moved</H1>
The document has moved
here.
</BODY></HTML>Here’s the result of the identical action for www.remarpro.com. The same fail happens with port 80:
root@server [~]# curl https://www.remarpro.com
curl: (7) Failed to connect to www.remarpro.com port 443: Connection refused
root@server [~]#RSS Feed:
RSS Error: WP HTTP Error: cURL error 7: Failed to connect to www.remarpro.com port 80: Connection refused
RSS Error: WP HTTP Error: cURL error 7: Failed to connect to planet.www.remarpro.com port 443: Connection refused
The page I need help with: [log in to see the link]
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You mention “AutoSSL” so I’m assuming you’re using WHM/cPanel on your dedicated server. This is more of a question for them (cPanel support) at this point, but I can try and walk you through some troubleshooting real quickly…
A. Check your Firewall rules within WHM. I don’t know what particular firewall option you’re using, but your ISP should know. Ask them to see if there’s anything in there that would be blocking connections to WordPress.
B. Check any weird DNS settings. I don’t see why this would be a problem but doesn’t hurt to see if your DNS resolver has some really weird configuration.
C. Update your server’s kernel and/or WHM version — a really outdated version of OpenSSL (which is not a part of WordPress at all, but rather a part of your server itself) can cause some issues like this. When you update your kernel in WHM, it should update all the packages with it, including OpenSSL. You can test if this is the problem by doing the same command that Steven provided earlier, but replacehttpswithhttp. It should connect this time, but respond with a 301 response if it is a problem with your server’s OpenSSL/TLS version.
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