I have a couple customers who are testing poorly at fast.com, yet their speeds are great on speedtest.net servers. Naturally they claim Netflix constantly buffers and accuse me of throttling Netflix - we're doing no such thing. For giggles I kicked their SM for a moment and put their pppoe account in a laptop at the NOC, set the throttle exorbitantly high (100mbps) and let it rip. 2mbps to fast.com, 99mbps everywhere else. Testing an adjacent IP in the same subnet will do 99mbps at both fast.com and speedtest.net.
I would be on the phone with my upstream asking questions if other IPs in the same subnet were experiencing the same results. This whole thing feels like Netflix is targeting individual IPs with a throttle hammer. Any ideas here? Chris Wright Network Administrator
