OnlyTheOnline
Log in
Get Help Now
dnsServer•errorerrorlocksslcodecURLsecurityfirewallsettingsserver_configuration•labelCommon•warningModerate

cURL error 56: Recv failure: Connection reset by peer

The error occurs when WordPress uses the HTTP API to request a remote URL. The cURL library receives a reset signal from the peer while reading data. This indicates that the TCP connection was closed abruptly during the transfer.

Typical triggers include firewalls, reverse proxies, SSL handshake problems, or server overload. The reset prevents WordPress from receiving the expected response.

Symptoms

[dashicons-warning]
Admin notice
WordPress displays “cURL error 56: Recv failure: Connection reset by peer” in the dashboard.
[dashicons-admin-site]
WP‑Cron failure
Scheduled tasks stop running and site health reports a broken WP‑Cron system.
[dashicons-admin-network]
REST API error
Site health shows a REST API request failed with cURL error 56.
[dashicons-admin-tools]
Plugin failures
Feeds, PDF generation, or external API calls return empty or zero‑byte responses.

Common Causes

Network‑level reset
Firewalls, routers, or ISP drop the TCP connection after the handshake.
Server‑side reset
Apache, Nginx, or a reverse‑proxy aborts the request due to timeout or overload.
SSL/TLS handshake failure
Mismatched cipher suites, expired certificates, or OpenSSL bugs break the secure connection.
cURL/PHP mis‑configuration
Timeout values set too low or forced SSL versions cause premature termination.
Plugin conflicts
Caching, security, or firewall plugins alter outbound HTTP requests and trigger resets.
Need this fixed right now?

Don't waste your day debugging. Our experts can Fix your issues in under 2 hours.*

Get this issue fixed

Success Rate

100% Guaranteed

Starting from

$35 /hour
99+

Trusted by Business Owners

“I spent 3 days trying to fix the Elementor loading loop. These guys fixed it in 20 minutes. Lifesavers!”

— Sarah J., Web Designer

Related Issues

contact_mail
Contact Form 7: REST API request failed: 503 Service Unavailable
A 503 Service Unavailable response stops Contact Form 7 from sending data...
apiREST APIerror503descriptioncontact-form-7
contact_mail
Contact Form 7: REST API request failed: 429 Too Many Requests

The form tries to send data through the WordPress REST API. The...

apiREST APIerrorerrorsecurityfirewalldescriptioncontact-form-7settingsserver_configuration
contact_mail
Contact Form 7: REST API request failed: 401 Unauthorized

The form tries to send data via the WordPress REST API. The...

apiREST APIadmin_panel_settingspermissionsdescriptioncontact-form-7lock401
contact_mail
Contact Form 7: File upload error: temporary directory missing

The error appears when Contact Form 7 cannot locate a writable temporary...

codePHPcloud_offupload erroradmin_panel_settingspermissionsdescriptiontemporary filedescriptioncontact-form-7
contact_mail
Contact Form 7: Mail (2) sending failed: PHP mail() function disabled

Contact Form 7 reports a failure for Mail (2) when the PHP...

codePHPerrorerrordescriptioncontact-form-7mailMailsettingsserver_configuration
contact_mail
Contact Form 7: Mail (2) sending failed: SSL certificate verification failed

Contact Form 7 reports a failure when trying to send the secondary...

errorerrorlocksslcodecURLdescriptioncontact-form-7