Update,I'm facing similar issue on fast.com, they called and asked for remote access but unfortunately due to planned power cut in my area, I wasn't able to provide them. When the power comes, I'll call them and will share how it goes.
Had a remote connection session with him, but when on session, Netflix worked fine. I told him about the ping issue and he told me the pings I'm getting is way higher(28ms to Mumbai Server). I'll ask him again for remote session when I face similar issue.
My guess is during IPL time only the Netflix issue is occurring.