I have been a happy Roku owner for more than a year. We previously had Ameritech DSL at a very slow 2Mbps download speed with a Netgear router and we could watch Roku without a problem.
Ameritech discontinued the DSL. We switched to Time Warner Cable standard internet. There is a new Motorola cable modem and then the same NetGear router.
I am getting speeds of 15Mbps, so things should be even better. With the old DSL, NetFlix would stream at 2 or 3 "dots", now it streams at 4 dots HD.
The problem: we can not sustain an internet connection for more than 20 minutes. We will start watching a show, then the Internet goes down. It takes about a minute for the service to come back up. Over the course of a 90 minute movie on NetFlix, this will happen four times. The service comes back automatically...I don't have to cycle the modem or the router. There are 2 computers & 2 Roku boxes on the network, but it is not a matter of another device starting to use bandwidth. The problem happens anytime that I try to use sustained Internet bandwidth for many minutes. Watching a webcast via GoToMeeting or via the Adobe Connect the connection gets interrupted. I was on a 60 minute webcast yesterday and lost internet 3 times, each time for about a minute. In each case, the Wired Internet symbol in the Windows 7 taskbar shows the yellow ! icon, reports No Internet, then comes back without me touching the router or modem. I was thrilled to "cut the cable" and stop paying TWC for TV. It seems like these little 1 minute interruptions would be a great way to prevent me from watching via Roku.
I previously read this thread: viewtopic.php?t=25719&start=0
and tried switching my DNS to Google or Speakeasy. The problem remains.
Can you suggest any diagnostic tools or where to start to find the problem? Thanks in advance for any suggestions.
I also have TWC(Time Warner Cable), out of NW Pennsylvania. I have the same standard internet as you, but mine is 10Mbps down/1Mbps up. Sounds like you have the boost added to your account. But that is neither her, nor there, and will not matter.
Anyway, I have a Netgear Router, and a ZOOM modem. I have some things wired(ROKU XS/Sony Blu-ray), and other things wireless(PS3).
The hardwired ROKU XS is connected via Powerline Adpaters, made by Belkin, to the Router in another room. Have worked like CHAMPS ever since I got a set almost 3 years ago. Now have six of them in total.
Anyhow, I began too experience, like you, problems with the "hardwired" stuff with my TWC internet. But NOT the wireless. So, if your ROKU is hardwired, and if possible, TRY USING THE WIRELESS setup instead, first.
If it is already wireless, and you are having problems, I would try switcjing out the modem first. Sounds like you may be using an old mortorola surfboard modem. If that is not it, it could be your router as well(Is it a newer one with wireless-N at least. Netgear N-600 or better?).
Routers, and modems, just like everything else, can break, and or go bad. Also, make sure your ROUTER has the latest firmware/software available. Alot of people just connect these things up and forget about them. Using the instructions availabe to you, and using your ADMIN account will allow you to check the firmware/software, and make sure it is up to date.