I have recently faced an issue in Jbossnative service, It behaves very strangly on high volume of traffic. On further investigation, i found out that application was working fine, but it was not taking huge number of transactions. Clients were unable to connect and unable to send any traffic.
I doubt that, Jboss native service is not compatible either with windows 2008 R2 or JBoss 3.2.5. I have also provided the infrastructure details below.