If multiple incoming multicast streams interfere with each other on Wowza Streaming Engine™ media server software running on Linux, set the Java property java.net.preferIPv4Stack to true. This may occur on Linux systems that have both IPv4 and IPv6 hosts.
To set the Java property, open the [install-dir]/bin/setenv.sh file in a text editor and uncomment the following line (line 13):
JAVA_OPTS="$JAVA_OPTS -Djava.net.preferIPv4Stack=true"
