RBR 750 intermittently crashes with high load on ethernet

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 your using a good quality LAN cable between the modem and router. CAT6 is recommended. 

Are the RBS ethernet connected to the back of the RBR or is there a LAN switch in between? 

Having 2.5Gb ethernet adapter may not be recommended as the 7 series system doesn't support 2.5Gb connections. Try setting these adapters to 1Gb max connection rate if you can on these adapters.

Try using 1Gb ethernet supporting adapters. 

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wheatt wrote:

I've tried repeatedly searching and see this problem mentioned, but I've yet to see a solution.

 

I've got an RBR750 (latest firmware, +2 wired satellites) connected to a CM1100 cable modem with gigabit internet via Spectrum. Everything mostly works well, but I've noticed intermittent crashes when using my desktop computer connected via ethernet.

 

This seems to happen with high-bandwidth activities such as running Speedtest.net or downloading via Creative Cloud. It's doesn't happen all the time, but when it does happen its been during one of these activities.

 

I've tried 4 different NICs.

1. No name brand Realtek 2.5g - same problem

2. Technet Realtek 2.5g - same problem

3. USB Realtek 2.5g - does not have this problem

4. Motherboard (ASUS x570 Prime Pro) Intel i221 - I don't think it had this problem, but I ditched this NIC because it was dropping the internet connection repeatedly for a split second (which is the reason why I changed NICs). Though thinking back I wonder if connection losses I've had in the past were the same issue.

 

So using a USB Realtek NIC seems fine? I can't for the life of me figure out what's going on. I guess I can keep using the USB NIC, but I'd like to get to the bottom of this.

 

This is totally a first-world problem but I'm on the verge of ditching the Orbi or buying a separate router and just using the Orbi as an AP.

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