The VideoLAN Forums

I'm unable to play rtp:// streams after upgrade W10 to 1607 compilation (aniversary). I'm sure that is not a firewall problem. I tried several versions of VLC 2.15, 2.24 and the last beta of 3.0 version.
VLC was working fine with the previous W10 compilation. At this moment I have other computer with the previous W10 complation in the same network and VLC play with rtp:// streams fine. VLC in both computers are reset to default.

Any help please ? Is a W10 (1607) bug?, all the updates are installed.

Juan

Is that multicast?

Yes, is a multicast service, rtp://239.X.X.X
Juan

Then maybe something changed in the Windows 10 networking stack, no?

Thanks Jean-Baptiste by your suggestion.
In none of my computers, W10 version 1607 and W10 version 1511, the key HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\IGMPlevel were in the the registry.
Initially I was thinking that behavior of both W10 were different, W10-1511 works by default and W10-1607 no.
But I was wrong. Now HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters in both are identical, also I added IGMPLevel=2 but the problem persists.
Firewall is disabled.
Juan

Reference:
http://superuser.com/questions/788347/h ... or-windows
https://technet.microsoft.com/en-us/lib ... 57547.aspx

Windows 10 since Anniversary Update (1607) has service "CDPSvc" (inside svchost.exe), that uses UDP-port 5050 (0.0.0.0:5050).
As it turns out this port is commonly used in multicast streaming of many providers.
So to play udp://@x.x.x.x:5050 or rtp://@x.x.x.x:5050 you need to disable that service and reboot.

And you should notify your iptv provider and tell them about the problem, they need to change the port as soon as possible.

Thanks. I can see that there is a connection at 5050, but my provider uses a port in the range 8K.