Netgear has set up a community forum specifically for the NightHawk RAX WiFi 6 Router products. Most of the people who watch that forum are more likely to have experience with NH router products and know how to work it better than those of us who follow this router forum. Might be more likely to find someone who has a solution if the question is posted there:
https://community.netgear.com/t5/Nighthawk-Routers-with-WiFi-6-AX/bd-p/en-home-routers-nighthawk-wif...
Try manually updating? https://kb.netgear.com/23960/How-do-I-manually-update-the-firmware-on-my-NETGEAR-router
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.
My Setup | ISP SparkLight | Internet Cable 1000↓/50↑ CAX30 Mode Mode | Wifi Router XR500 and RBK863 Router mode | Switches NG GS105/8, GS308v3, GS110MX and XS505M | Additional NG HW: C7800/CAX3/CAX80/CM1100/CM1200/CM2000, Orbi: CBK40, CBK752, RBK50, RBK853, RBK752, RBK953, SXK30 | NightHawk: MK63, R7000, R7800, R7960P, R8000, R8500, RAXE500, RAX120v2, RAX50v2, XR450/500/700/1000, EX7500/EX7700
