Secure Webservice call failing

We are trying to execute a REQUEST statement with HTTPS and authentication but it fails with the error
‘Web Server/Natural Resp Code: 0 / 8304’
Our network analyst advised they see the below error -
“406 z/OS Cryptographic Services System SSL Programming
Error while reading or writing data.
An I/O error was reported while the System SSL run time was reading or writing data.
User response
Ensure that there are no network errors. Collect a System SSL trace containing the error and then contact your service representative if the error persists.”

Can you pls inform us how to resolve this error.