It has already disabled.
However, I am able to play the stream from website that use
http://win.2.c3.audiovideoweb.com, but NOT for a1799.v235439.c23543.g.vm.akamaistream.net OR citrixvar.download.akamai.com.
what is those .com and what does it do? (autiovideoweb, *.akamai.com/net).
Sometime the error tell the proxy is not correct.