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Forum Discussion
Nighthawk CAX30 connection issues after reserving DHCP IP address reservations under LAN Setup
I've been experiencing severe connection issues with my Nighthawk CAX30 cable modem router. If I go into my device LAN setup under advanced settings and attempt to make any DHCP IP address reservations for my devices, every single device is then unable to connect to the CAX30 after it has rebooted. This goes for both wired and wireless connections! 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 adding IP address reservations for my devices, my CAX30 will not let anything connect (again, wired and wireless). I have even gone so far as to get on every single device, remove the network from device memory, manually reset network data, and fully reboot each one. Still won't let a single thing connect to it with fresh network settings! SOMETIMES a device will connect to the wireless SSID, but the network status will say it is connected without internet access just to disconnect again shortly after. If I'm lucky enough to get my Dell XPS laptop connected to my SSID long enough to revert DHCP settings and remove the address reservations, everything can connect normally again after settings are applied and the CAX30 reboots. This issue was present in both the original CAX30 I had purchased as well as the replacement that Netgear provided.
Here is all of my relevant information:
- Model Nighthawk CAX30 AX2700 cable modem router
- 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!
5 Replies
Question, after you add the IP reservations. Are you able to go into, lets say, your laptop and manually add the IP. Does it work then? Unpractical, I know.. just wondering.
- No, unfortunately that didn't fix anything. One of the first things I did on all my devices was created static IP's and a full reset of each one. I want to test the reservations again soon, but I'm sure it will keep happening since there hasn't been another firmware release since the last time.
Hi iRyan,
Thank you for reaching out. We are sorry for not being able to get back to you immediately. Our support team is looking into this issue and would like to work with you
We would like to endorse you to NETGEAR Level 2 support team for callback. Please provide the following information:Name:
Email:
Phone:
Preferred schedule ( atleast 2 days ahead)
Timezone:
Device S/N:
Alternatively, if you wish to be contacted via email only then kindly include your preferred email address.
I am looking forward to your response.
Regards,
Oliver
Community Team
My CAX30 is connecting to my laptop but not my cell phones and various Alexa devices. I've spent over three hours on the phone with Netgear and we (Netgear rep and me) tried to get Comcast to push an update for 1.0.4.10 but Comcast hung up on us.
I'm taking the router back to Costco tomorrow and will probably try again with the same model.
Netgear has set up a community forum specifically for the Cable Modem products. Most of the people who watch that forum are more likely to have experience with Cable modems and know how to work it better than those of us who follow this router forum:
https://community.netgear.com/t5/Cable-Modems-Routers/bd-p/home-cable-modems-routers
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.
