Nighthawn CAX30 Cable Modem will not DHCP IPv4 addresses after Wifi Customization

I've been experiencing this exact same issue since I first purchased it back in May. Netgear also sent me a replacement after troubleshooting with both my ISP Comcast and Netgear support for 2+ hours over the phone. All other settings I change take effect without any issues, but as soon as I go into my advanced LAN setup and start reserving IP address reservations my CAX30 will not let any of my devices connect to it (wired and wireless). I have even gone so far as to get on every single device, remove the network from device memory, manually reset every network setting, and do a full reboot of the devices. Still won't let a single device connect to it. SOMETIMES a device will connect to the wireless SSID, but the network status will say it is connected without internet access. Once I restart the CAX30 I will be able to wirelessly connect my laptop to the network just long enough to remove the IP address reservations from DHCP and everything is back to normal once I apply the changes. 

Here is all of my relevant information:

- Hardware version 1.01

- Firmware version 1.4.10.8

- Cable firmware version 1.04.10

- CM certificate installed

- Windows 10 Home Version 21H1

- OS Build 19043.1081

I saw somewhere that this bug can be avoided by using only letters and numbers in your SSID password, but my PW has only always been letters/numbers and the issue still persists. I would GREATLY appreciate any help and feedback that anyone may have. Thank you!