@Gary-Kulovics @cpattersonit
Sorry for not responding sooner.
Please turn off any firewall you have on the fog server (sudo ufw stop or systemctl stop firewalld) and try again. Clear the multicast tables per the troubleshooting guide and then restart FOGMulticastManager with either service restart FOGMulticastService or systemctl restart FOGMulticastManager and try again.
If you haven’t, please go through the troubleshooting guide posted earlier. If you’re still having problems, I can help around 4:30 PM CST via Team Viewer, please send me a message via the forums here.