Internal server error happens after waiting for server response reaches 1min in browser/postman

Our application works well in server without ssl. after installing the internal ssl in the server, the api loads the data and browser throws internal server error only when the waiting for server response reaches 1min.

After it reaches 1min response we are getting as 500 internal server error. i have checked the logs and there was no error and in fact the data was loaded and the response was sent.

In https environment the api gets internal server error after waiting for server response reaches one minute.

but with the same api and payload in http environment executes even after one minute

we thought like we need set the request timeout in jboss server and ssl. after setting request timeout in jboss server(standalone.xml) we are still facing this issue.

<https-listener name="https" socket-binding="https" security-realm="ApplicationRealm" enable-http2="true" request-timeout="120000" connection-timeout="120000"/>

also i have tried to set the no request timeout in wildfly undertow file as mentioned below. still the issue was not fixed.

https://developer.jboss.org/thread/279379

can someone suggest any solutions?

note: we are not using proxy and we are using round robin load balancer.

If you are using a load balancer it means that the JBoss server must not secure the connection on it's own, but you have to configure the load balancer with TLS and the certificate - it has to "terminate" the secured connection from the client and pass it on (probably unsecured) to one of your servers.