JBoss HTTPS connection dies after a while - jboss

Question

I have a JBoss 7.2 app server and I start the server, I am able to connect to both the http and https ports but after a while running the server, I am not able to connect to the https port anymore but the http port still works so the server is still running. I tail the logs when I try to connect to the https port but nothing shows up and when I do a netstat on the https port, the port is still listening. Has anyone had this type of issue before?
JBoss Standalone.xml configuration
<security-realm name="ApplicationRealm">
<server-identities>
<ssl>
<keystore path="${jboss.home.dir}/standalone/configuration/XXXXX.keystore" keystore-password="XXXXXXXXX" alias="1"/>
</ssl>
</server-identities>
<subsystem xmlns="urn:jboss:domain:undertow:7.0" default-server="default-server" default-virtual-host="default-host" default-servlet-container="default" default-security-domain="other">
<buffer-cache name="default"/>
<server name="default-server">
<http-listener name="default" socket-binding="http" redirect-socket="https" enable-http2="true"/>
<https-listener name="https" socket-binding="https" security-realm="ApplicationRealm" enabled-protocols="TLSv1.1,TLSv1.2" enable-http2="true" ssl-session-cache-size="500" ssl-session-timeout="1800"/>
<host name="default-host" alias="localhost">
<location name="/" handler="welcome-content"/>
<access-log pattern="%h %l %u %t %r %s %b %{i,Referer} %{i,User-Agent} %S %T %{i,X-Forwarded-For}" prefix="access_log_"/>
<http-invoker security-realm="ApplicationRealm"/>
</host>
</server>
<servlet-container name="default">
<jsp-config/>
<websockets/>
</servlet-container>
<handlers>
<file name="welcome-content" path="${jboss.home.dir}/welcome-content"/>
</handlers>
</subsystem>