Resolved Question

Is inconsistent network bandwidth is my router or upstream?

Feb 14, 2020 6:26AM PST

I have a combo SBG6580 cable modem/router and am trying out YoutubeTV via a Roku stick over wifi. Most of the time all is fine but at least once a day the picture stalls and buffers. If I reboot the router it's again fine. How do I figure out if the inconsitency is due to my router, the cable modem or upstream?

I only subscribe to 30 mbps and I know I can fix it by going to 100 (another $15/month) or I could get a new Roku ($80) that has a wired connection to the router, but I am curious if what's happening is my router issue or not.

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Best Answer

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Best DNS for Youtube TV
Feb 14, 2020 2:33PM PST

I looked into which DNS IP addresses are best for Youtube TV and came with a number of DNS IP addresses for IPv4. Here are the listings of them.

These DNS servers are known to work well with Youtube TV.

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About the 30.
Feb 14, 2020 9:44AM PST

If you follow the requirements it only takes 5 megabits per second for HD content. Now if you go for UHD 4K that takes 25 so it matters what you are streaming.

Also, all this streaming is still a bleeding edge not ready for everyone product. What you noted is not uncommon.

Answer. Do not go to 100 if you are streaming less than UHD 4K.

About what to try.

1. Try another DNS like or (varies with products so I can't supply step by step.)
2. Be sure the router or WiFi source is about 20 feet from the Roku.
3. Be sure others in the house are not using the WiFi for things like streaming, gaming, spotify, etc.
4. Try a cable modem+router reboot before your next use.

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Will try these steps
Feb 14, 2020 12:13PM PST

Thanks, I'll try the DNS - but, how can I figure out which to use?

Other answers:
Router is only 12 inches or so from the Roku
It's just my wife and I (retired) so no one else using bandwidth
Rebooting the modem/router always solves the problem.

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I use 6 DNS entries.
Feb 14, 2020 12:48PM PST

3 for IPv4.
3 for IPv6.

The system and how it works is out there but I like to run with all set to my choice.

I can't make that choice for you but will write you should try DNSBENCH if you want to find which DNS is fastest today.

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Remote Possibility
Feb 14, 2020 7:58PM PST

Try setting your router to use a different channel, just in case a nearby neighbor's router is on the same channel as yours and causing interference.

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