Nest WiFi router slows internet speed

[kenmos]

When the computer is wired to Arris SB 6190 modem, speedtest.net gives a reading of 615 mbps download. 

When I wire the the Nest WiFi router to the modem and wire the router to the computer, speedtest.net gives a reading of 86 to 90 mbps. Same wires used on both tests.

I tried another Nest WiFi router, wired the same as above, and received the same 86-90 mbps readings.

I've tried the above scenarios with the DNS set to automatic and to custom 8.8.8.8

Modem and routers were reset each time with a power off - on.

Thoughts?

[olavrb · Accepted solution]

Could be the modem from what I found when searching:

• https://www.reddit.com/r/GoogleWiFi/comments/77ueyp

Also, it sounds like you are running double NAT, which is not recommended. Make sure the Arris modem is set to bridge mode.

• https://dongknows.com/double-nat-vs-single-nat/
• https://support.google.com/googlenest/answer/6277579?hl=en

[kenmos]

Thank you for the article link. I tried a different modem. Notified Xfinity. Internet speeds are at 600+ wired . Wifi speeds, of course, vary throughout the house and are very acceptable 

[Jeff]

Hey kenmos,

It looks like olavrb was able to give you some direction and help here. I wanted to check in to see if you were happy with the results of the troubleshooting or to see if you still needed some additional help. If you're looking for more input, just let me know.

Thanks,

Jeff

[Jhonleanmel]

Hi folks,

Chiming in to see if you still need assistance with this. Let us know if you have additional questions ― we'd love to help.

Best,
Mel

[Jhonleanmel]

Hi everyone,

Just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know.

Thanks,
Mel

[kenmos]

All is good from my point of view and thread can be closed. Thank you for the follow up. ken

[Jhonleanmel]

Hey kenmos,

Awesome — glad to hear that your issue is fixed. It looks like we can consider this one complete, so I will lock the thread shortly unless I can help out with anything else.

Best,
Mel