@sebastian-roth ok after fixing my error to the multicasttask.class.php I ran the 3 tests you suggested
do not turn off any of the clients to see if it still is reliable
pull the network cable of one of the clients while multicast is on for 5 seconds - see if that is enough for it to be dropped already
turn off one of the clients while multicasting and see how long it takes for it to drop
During the first test, multicast worked normally and the new argument added to multicasttask.class.php was reflecting in the logs. During the second test pulling the network cable did not appear to drop the disconnected host, but upon plugging the network cable back in the session returned to normal speeds. During the last lest of powering a client off during a session, the multicast session came to a near halt and is only transferring at around 100 MBpm. I’ve left the session going all night and the session is still active and moving at the throttled pace.