Troubleshooting CURL Error: 56 - OpenSSL SSL_read: Success error
You may encounter the following error when attempting to perform actions on remote systems, such as managing/registering domains via eNom or hosting accounts on servers:
CURL Error: 56 - OpenSSL SSL_read: Success
A recent system update to cURL 7.67 in EasyApache 4 version 2019-11-20 contains changes which cause this error.
The issue has been detected by the cURL developers and will be corrected in future updates.
Reverting back to the non-bugged version of cURL (version 7.66) will resolve the error immediately:
yum downgrade ea-libcurl ea-libcurl-devel
Then restart Apache.
You may need to contact your server administrator to make this configuration change.
An update will be produced by the cURL developers and rolled out by your server platform (eg. cPanel) in due course.
WHMCS technical support cannot assist in resolving this error as it is caused by an upstream bug.