ERROR CODE: Connection appearing suddenly

[Staffan Liljas]

On our website, https://www.tidskriftenopera.se, we have been receiving the error message ERROR CODE: Connection for all Blog2Social functionality for the past few weeks. We have a PRO plan, and I have confirmed with our hosting provider that we do not have any firewall rules blocking access to your servers. The only change to the system that I can see that might have corresponded with the time when the problems started is an automated upgrade to Wordpress 6.7.2. Performance seems to be OK. I've attached the relevant trouble-shooting information from our server.

[Kevin Gower]

I have been having this issue now for several months. When you see the error use the Diagnostic and send it to Blog2Soical. Unfortunately their first level is not technical and will lead you on a dance but persist.

[adminaw]

[ATTACH]10896[/ATTACH] On our website, https://www.tidskriftenopera.se, we have been receiving the error message ERROR CODE: Connection for all Blog2Social functionality for the past few weeks. We have a PRO plan, and I have confirmed with our hosting provider that we do not have any firewall rules blocking access to your servers. The only change to the system that I can see that might have corresponded with the time when the problems started is an automated upgrade to Wordpress 6.7.2. Performance seems to be OK. I've attached the relevant trouble-shooting information from our server.

I will check this

[adminaw]

I have been having this issue now for several months. When you see the error use the Diagnostic and send it to Blog2Soical. Unfortunately their first level is not technical and will lead you on a dance but persist.

This error is often caused by so-called security plugins or firewalls such as Wordfence or Cloudflare, which block outgoing connections. It is simply difficult to enable communication if the blog blocks every communication.
One solution could be: Whitelist our server IP 178.77.85.168. Since we also need to access the blog website, you should also enter your own IP (that of the blog) in the firewall.
In principle, functions such as ‘Curl’ must be allowed.

[adminaw]

I will check this

Could you please enter the button (see attached file) and post the result.
Thanks

[Staffan Liljas]

Thank you for the responses. This problem has now resolved itself, but I thought I would add some information. This was an issue between February 19 and March 2, roughly. I was trying to run the debug, but it actually didn't respond at all. We do not use Cloudflare or Wordfence at all. Our hosting provider, one.com, has a firewall, but I confirmed with them that it was not blocking the IP. Since this is not our equipment, I cannot confirm whether it was correctly configured directly. But now, things have resolved themselves as mysteriously as they stopped working.

[adminaw]

Thank you for the information.
The behaviour strongly suggests a firewall. It blocks the IP due to ‘suspicious behaviour’ and usually unblocks it hours later.
The blocking periods are extended each time they are repeated. Perhaps the firewall has been made less strict by the provider again.
I am pleased that it is working now and hope that the problem will be solved permanently.

Best regards,
Andreas

[Staffan Liljas]

Now it is not working again. I have reached out to the ISP and asked them to explicitly white list the ISP. I hope that helps, and will report back. The debug connection button is not working, so I cannot submit any more information.

[Blog2Social Support]

Hi,

Thank you for the update. I'm sorry to hear that the issue persists. It's good that you've reached out to your ISP to whitelist our service – please keep us informed if that makes a difference.

Best regards,

Philippe

[PPlusWebmaster]

Like the OP our site has had Random Error Connection code going on and off from a few weeks as well. The troubleshooting that is in the plugin always points to the hotlinks. I have triple checked that hotlinks are allowed and even added code to htaccess to make sure that hotlinks are allowed. I have add the IP address to whitelist and it still seems to be random connection error. Any idea why?

[Blog2Social Support]

Hello,

Thank you for reaching out and providing these details.

Intermittent "ERROR CODE: Connection" messages typically indicate temporary network or server-side security-related issues preventing Blog2Social from connecting properly.

Given your detailed troubleshooting, this strongly suggests a firewall or security plugin intermittently blocking the connection—particularly because the issue seems to appear and disappear randomly.

Could you please confirm whether you're using Wordfence or a similar security plugin?

Best regards
Philippe

[PPlusWebmaster]

Hello,

Thank you for reaching out and providing these details.

Intermittent "ERROR CODE: Connection" messages typically indicate temporary network or server-side security-related issues preventing Blog2Social from connecting properly.

Given your detailed troubleshooting, this strongly suggests a firewall or security plugin intermittently blocking the connection—particularly because the issue seems to appear and disappear randomly.

Could you please confirm whether you're using Wordfence or a similar security plugin?

Best regards
Philippe

We are using AIOWPS and I have whitelisted your server's IP, triple checked that hotlink protection is disabled. Even made sure W3TC is not blocking anything as well as reached out to our hosting provider [InMotion Hosting]. We also started having this issue after Wordpress updated to version 6.7.2.

[adminaw]

Can you send us temporary access to your Wordpress Blog to have a look closer. You can send it to customer-service@blog2social.com
Thanks
Andreas