@xpalis said in Multicast is slow:
multicast speeds reach up to 1.5-1.6 GB/min ONLY if i connected fog server separately from my network.
So we see that your FOG server and the clients are able to do full speed. So it’s probably your network equipment or some kind of configuration of those. Would you mind drawing up a quick schema of your network structure including subnet information so we know better what your setup looks like?