Wifi no internet but ethernet works

[Crypto87]

Wifi will loose internet access but ethernet works fine. Have to reboot router to fix

[FURRYe38]

So what NG router are you referring too? 

[Crypto87]

Nighthawk R8000

[plemans]

What error do you get? 

Are you able to connect to the wifi but it says "connected, no internet" 
What actually happens?

What modem/gateway is the router connected to? 

[FURRYe38]

What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?

Be sure the wifi button on top of the router is ON. IF thats OFF, press it for 5 seconds then release. Wifi LEDS should turn ON for 2.4 and 5Ghz. 

Has a factory reset and setup from scratch been performed since last FW update? 

[wcalifas]

Try a different firmware for that router and see if that helps it. Maybe upgrade or downgrade the firmware depending which firmware it has.

[michaelkenward]

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@Crypto87 wrote:
Wifi will loose internet access but ethernet works fine. Have to reboot router to fix

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The lack of detail there may explain why you have had so many different suggestions. (I'd avoid changing firmware until you have tracked down the problem.)

Before diving too deeply, try answering the question that @FURRYe38 asked about the modem/gateway.

Which firmware version do you have on the R8000?

Does this happen with all wifi clients?

Then there i the question from @plemans "What error do you get?"

[Crypto87]

Phone and camera use the wifi and I have only 2 bars with the cell so I'll notice nothing loads while on the phone. Had a Cisco modem and just upgraded to an unknown modem from both from Spectrum. Same issue with both however.

[Crypto87]

Firmware Version is V1.0.4.84_10.1.84

i think the modem is EU2251 from Spectrum. Just upgraded from a Spectrum Cisco Model DPC3010. WIFI internet cuts out with both. Wifi is on just connected with no internet. I have not done a factory reset.

[michaelkenward]

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@Crypto87 wrote:

Just upgraded from a Spectrum Cisco Model DPC3010.

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Did you have wifi problems with the old modem?

Did you reset the router when you changed the modem?

That tells it to forget settings inherited from the old modem.

[Crypto87]

Yes same issue with both modems and I have rebooted the router after replacing the modem

[FURRYe38]

Has a factory reset and setup from scratch been performed since last FW update? 

Does the router feel extra warm or hot on top? 

How do you have Basic wireless settings and Advanced wireless settings configured? Under Advanced Tab/Advanced Settings/Wireless Settings 

Any Wifi Neighbors near by? If so, how many?

Your modems don't have wifi or built in routers. 

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@Crypto87 wrote:

Firmware Version is V1.0.4.84_10.1.84

i think the modem is EU2251 from Spectrum. Just upgraded from a Spectrum Cisco Model DPC3010. WIFI internet cuts out with both. Wifi is on just connected with no internet. I have not done a factory reset.

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[Crypto87]

It's a little warm. 3 other wifi in range. I haven't done any changes to wifi settings or a factory reset even after a new update

[FURRYe38]

I would try a factory reset and setup from scratch.

I also recommend placing a laptop cooler under the router for additional cooling.

[Crypto87]

Nighthawk R8000

[Crypto87]

Did a factory reset. May be up to a few days before it does it again if it does do it.