NightHawk CAX 30 slows until Factory Reset or config restore

[akeele]

I have experienced this issue with this router since buying it at Costco in July 2021. My firmware is up-to-date with version 1.4.10.8. I do not have any special port forwarding or access control configured. This router does not support QoS configuration.

After initial setup, I get 350 - 500Mbps directly from the router over Xfinity that is provisioned for 400 Mbps. Within hours, the rate drops to 120 - 150 Mbps. This is consistent and repeatable.

I enabled Airtime Fairness. Nothing improved.

If I do a reboot, nothing is improved. This is consistent and repeatable.

If I do a hard factory reset, speed is temporarily restored in full. This is consistent and repeatable.

If I restore a backed-up configuration and then restore/overwrite + reboot, speed is temporarily restored in full. This is consistent and repeatable.

This router needs better firmware is all I can figure. I am not the only customer with this issue in this forum. I hope Netgear reads this post and will respond.

I've posted this to the cable modem section, but nobody replies. See https://community.netgear.com/t5/Cable-Modems-Routers/NightHawk-CAX-30-slows-until-Factory-Reset-or-... for screen captures.

[plemans]

repeated posting doesn't help. 

https://community.netgear.com/t5/Cable-Modems-Routers/NightHawk-CAX-30-slows-until-Factory-Reset-or-...

[akeele]

Then why have other "Guru's" asked me to repost to different forums as they may be more appropriate and get better response. This leaves me guessing as to what forum is most appropriate. I feel like a pingpong ball here.

[FURRYe38]

We asked you to post inthe cable modems back when you first posted about this:

https://community.netgear.com/t5/Nighthawk-WiFi-Routers/NightHawk-CAX-30-slows-until-Factory-Reset-o...

The Cable modem forum is the appropriate forum for your NG modem product.

This forum is for the RAX and RAXE series router products. We are hoping to make the forum title information more clear. 

Please use this link to the main forum product list to review and choose where to make your posts. 
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear

Thank you.