Originally Posted by Philnick
I'm on Comcast, and in my experience last week, Speedtest.net typically reported data rates 150% that of TestMy.Net.
My cable modem, connected by ethernet to a two year old Dell Win7 Pro 64 bit laptop, puts out around 70-80 Mbps (which Speedtest was reporting as 120Mbps!).
Are you on 105mbps Blast!? 120 sounds a bit high, although if you're using their equipment, it might have that large of an overprovision. When my Blast! was at full Blast! speed, it would do about 111 down. Then it sort of got lame, and settled in around 60mbps. Ookla SpeedTest has the most accurate speed test out there, and I tend to trust them a lot.
Relay that over MOCA (via a pair of used Verizon FIOS boxes that do the MOCA link over their coax jacks, and include 4 port WiFi G routers) by connecting to the Comcast cable modem / router LAN jack to LAN jack, and a LAN jack on the remote MOCA box has a top speed in the 40-48 Mbps range. That never lit up Amazon Prime's "1080p" indicator for me, though it was plenty fast for the VUDU app in my Oppo to do HDX - I guess VUDU uses much more video compression.
There's something screwy with Amazon's service/device if they can't do 1080p over a 40mbps connection. Their 1080p video is around 12mbps, so it should work fine on anything over 15-20mbps.
Over on the main Amazon Prime thread here, the consensus is that you need 50 Mbps or more to get 1080p from Amazon Prime, so I moved the Comcast box down to the theater end of my MOCA link, giving the Fire the bandwidth it needs for 1080p from Amazon.
I can live with 40+ Mbps at my upstairs desktop (relayed over MOCA from the theater), since that was what I was getting before - the first step in this reconfiguration was taking my old Linksys WRT54G out of the center chair as the main router upstairs, between the Comcast box and the rest of the network, as it was acting as a bottleneck, since - like the MOCA boxes - it's not a gigabit-router like the one built into the Comcast cable modem.
That's really bizarre. My FireTV Stick got 1080p after a few minutes. I know my 5ghz wifi is capable of 110mbps+ to my 3x3 N Macbook Pro, but I don't think the FireTV Stick itself is capable of anywhere near that. Maybe 40mbps if it's lucky, and it still works just fine with 1080p.
The WRT54G is only good for about 25mbps. My parents have one with performance (their area is still 25mbps), and it's just about maxed out bandwidth wise at 27/6 through a DOCSIS 2 modem. You should not be using a WRT54G as a router with Blast!. It's fine as a switch/AP, as it should still be able to switch at around 93mbps (the practical max for 100mbps Ethernet). And why were you running a different router behind their gateway? Why didn't you just use a regular modem or eMTA? For Blast! you need a router with gigabit in order to route the full 105mbps. Do you have the piece of s*** XFinity gateway thing? They overprovision their own equipment more than customer-owned equipment, in order to make up for xfinitywifi I think, so that could explain why you are seeing speeds of around 120mbps.