max size 65535.
Also you can try rescan channels and push apply in server dialog.
ps: I am not have good idea. Server not can limit net speed.
Re: Big problem with Prog Media Server
#32This not work for me. I changed packet size to 65500. 
Why in PMS Pro 4.01 Multicast and Broadcast is disabled? This is Trial program, right?
I revert to old 3.71 with old Unicast problem.

Why in PMS Pro 4.01 Multicast and Broadcast is disabled? This is Trial program, right?
I revert to old 3.71 with old Unicast problem.
Re: Big problem with Prog Media Server
#33Because I am not know no one reason for multicast. And like remove unusable functions.
For example you also not use this mode.
For example you also not use this mode.
Multicast work perfectly with PMS Pro 3.71, but the traffic is always and this is as flood for the network.
Re: Big problem with Prog Media Server
#34Yes, this is true, but Multicast use UDP. UDP is very fast. 
Unicast is TCP based and he is slowly.

Unicast is TCP based and he is slowly.
Re: Big problem with Prog Media Server
#35This is not depended from protocol.
ps: Try disable firewalls for test.
ps: Try disable firewalls for test.