New RBR750 dropping ethernet connection every day.

[jblank1074]

Greetings all, I bought an RBR750 AX4200 from Amazon in late January, sadly, it's been one problem after another. Every evening sometime between the hours of 8:00 pm and 3:00 am, it loses connection to the ethernet connection (Spectrum cable modem). I'm at my wits end, I have done everything but having to reboot the router daily (or nightly) isn't acceptable for such a pricey product. I am using the current firmware, version V4.6.5.14_2.0.54. Has anyone had this happen? Any ideas? It's not the modem, it was working perfectly fine with the previous router, a Netgear RBR20.

[FURRYe38]

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

Does the Front LED on the RBR turn ON when the happens? 

https://kb.netgear.com/31030/What-do-the-LEDs-on-my-Orbi-mean

Has a power off for 1 minute then back ON with the ISP modem and router been performed since last update?
Be sure to restart your network in this sequence:
Turn off and unplug modem.
Turn off router and computers.
Plug in and turn on modem. Wait 2 minutes for it to connect.
Turn on the router and wait 2 minutes for it to connect.
Turn on computers and rest of network.

[jblank1074]

Thanks for your reply. The Spectrum box is a Hitron EN2251. Yes, multiple power resets have been performed and nothing positive has resulted from it.

[FURRYe38]

Does the Front LED on the RBR turn ON when the happens?

What is the CAT# version of the lan cable betweent he modem and router? CAT6 is recommended.

[jblank1074]

Yes, the front LED is magenta in color and the cable is Cat6.

[FURRYe38]

That would inidicate that the RBR has lost connection to the modem or the modem is no longer giving a signal to the RBR or modem has lost service signal from the ISP line. If this happens on a daily basis, seems to be a possible ISP service line issue. 

Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly. Have them check there logs for items seen when you noticed this happening. 
Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Mod...
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router?article=24311
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html

Also review this and concider updating Orbi FW as last resort:

https://community.netgear.com/t5/Orbi-WiFi-6-AX-and-WiFi-6E-AXE/New-RBR750-RBS750-Firmware-Version-v...

[jblank1074]

Thanks but I have already eliminated the modem from being part of the problem. I have a replacement (same model) coming from Amazon, I will see if the behavior continues with the replacement.

[FURRYe38]

Try the FW update suggestion. 

[jblank1074]

I'm already using current firmware.

[FURRYe38]

v5 is past current FW. 

v14 has known issues that caused lots of problems since it was released last year. 

[jblank1074]

I just looked and I am running the current firmware. If you have a link to the firmware you think will help me, please provide it to me.

Thanks!

[FURRYe38]

I included a link to v5 in a previous reply. 

[jblank1074]

If you're referring to the Salesforce link, it's dead. Can you please try it again, I appreciate your help.

[jblank1074]

Disregard, I found the link to 4.7

[FURRYe38]

Yes, links still working.