Most super hubs locked to more than 1 channel have a flashing blue light. The sh2 has a double arrow second up which constantly flashes.
What's your stats when it's flashing green? paste them from here please?
http://192.168.0.1/cgi-bin/VmRouterS...wnstreamCfgCgi
http://192.168.0.1/cgi-bin/VmRouterStatusUpstreamCfgCgi