NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

iRyan's avatar
iRyan
Star
Jun 28, 2021

Nighthawk CAX30 AX2700 connection issues with DHCP and IP address reservations

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 reservatio...
olympos1625's avatar
olympos1625
NETGEAR Employee Retired
Dec 21, 2021

Hi iRyan,

 

We are sorry for the inconvenience this has caused you. We would like to endorse you to NETGEAR Level 2 support team for a callback. Please DM the following information:

 

Name:

Email:

Phone:

Preferred schedule (atleast 2 days ahead)

Timezone:

Device S/N:

Firmware version of the CAX30:


 

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

dharris3's avatar
dharris3
Tutor
May 05, 2022
I am having this exact same issue. Please update with resolution. Latest firmware offered no relief to the issue.
  • iRyan's avatar
    iRyan
    Star
    May 07, 2022

    dharris3- I was never able to resolve the issue with reserving IP addresses in DHCP. Someone suggested to me a few months ago that manually assigning an NTP server to keep the CAX30's internal clock updated worked for them, but doing that didn't fix the issue for me personally. I gave up trying to reserve IP addresses for my devices and eventually ended up doing a factory reset on the CAX30, and now I just let the DHCP auto-assign them all so I can have working internet.

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      May 07, 2022

      Did you try setting a small default DHCP IP address pool size? Try 192.168.1.100 to .200 and see if IP Reservations work for you?

      • iRyan's avatar
        iRyan
        Star
        May 07, 2022

        Actually, that was one of the very first things that I tried and that made no difference. I'm confident this must be some sort of firmware issue, so it would be really nice if Netgear would release a firmware update for the CAX30. Especially considering the last update was almost a full year ago!

    • frnkboz's avatar
      frnkboz
      Aspirant
      Oct 28, 2022

      I have the same issue you are having with your CAX30; "Nighthawk CAX30 connection issues after reserving DHCP IP address reservations under LAN Setup". 

      The only different is that my wired devices do connect to the router, but they can't access the internet and most of the wireless devices are unable to connect to the CAX30 after I start to reserve IP addresses.  

       

      I provided the Level 2 technical support team all my logs and diagnostic information from my router for the engineering department to diagnose and they can't locate the issue with the device.   They also told me that none has reported the issue I'm experiencing with this router.  And just like you, the router works fine with working internet after I reset the device and I don't reserve IP addresses under LAN Setup.

       

      Also,  Netgear replaced my router after I contacted support months ago about this issue, and the replacement router is having the same exact problem.   A new firmware was release on 9/2022 ( V.1.4.10.10) but it doesn't fix the connection issues when reserving addresses.