I can't comment on Vixen since I don't use that program.
When you connect you PC to the etherdongle, I've always set it to DHCP rather than setting a static IP address.
Have you tried setting it to obtain an IP Address automatically (DHCP)?
I'm also assuming you must be connecting directly to the Ether dongle, rather than going though a router.
I in-fact connect through a router so it connects like this:
PC-> Router->Etherdongle->Smart string Hub-> Smart String Controller-> Lights
Have you tried connecting through a router?
Also, do you have any anti-virus, anti-malware S/W turned on?
If so, try turning it off
Also, I can't quite see in the video how many LEDs you have connected, but when you program the LED modules you are setting it to 36 Nodes.
Each node is 3 LED channels, so in fact you are setting the SSC to 2x36 nodes = 108 channels (although I don't think that's the issue)