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Forum Discussion
Benedictcc
Mar 16, 2022Guide
Nighthawk AX2400 RAX30 - unable to passthrough DHCP?
 (Couldn't find the model in the drop-down, so I included it in the subject.)     Just bought another Netgear WiFi router, and am trying to configure it similar to the R7000 that I used for years. The...
- Mar 23, 2022I chatted with Netgear support Level 1, and after having me redo much of the work what I already did a few times, they told me to call for Level 2 support. Level 2 support had me manually downgrade to the previous firmware version to test the Wireless AP functionality in that version. However, they also asked me to do a factory reset on the router, which seemed odd, since the router setup then forced me to upgrade again and therefore didn't allow testing the old firmware. However, something about downgrading to the older version, at least for a short while, got the Wireless AP mode working as it should in the new firmware version, as well as improved general stability. Perhaps something happened in the original firmware upgrade that wasn't corrected in any reset or re-install of the same firmware, but it works now, and network DHCP is again able to configure wireless clients as well as wired ones. I would suggest downgrading firmware, whether or not followed by an upgrade again, as a useful technique for troubleshooting. 
plemans
Mar 17, 2022Guru - Experienced User
How do you actually have it wired (the whole setup from modem--->dhcp---->router, etc) and whats controlling dhcp?
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Benedictcc
Mar 17, 2022Guide
I'm hoping this diagram stays intact.
Internet -----> gateway -----> switch ----> AX2400 -----> (wireless network)
|
V
(wired network)
The gateway is a Linux machine that runs DHCP, and other network functions. The R7000 worked well in the same place as the AX2400 is now, and with its DCHP turned off, the gateway's DHCP configured the IPv4 address for each wired and wireless client from the same range. That's what I've been trying to do with the AX2400 now, but it seems to block inbound and outbound DHCP packets rather than passing them through it.
- plemansMar 17, 2022Guru - Experienced UserIn access point mode, it shouldn't be blocking anything. It should be getting all its info from the dhcp server if its wired and the dhcp server is function properly. got the old R7000 you could set as a dhcp server and connect the AX2400? That'd determine if the AX2400 is running in AP mode properly (testing on a different dhcp server) - BenedictccMar 17, 2022GuideUnfortunately, the R7000 isn't working anymore - that's why I bought the AX2400. 🙂 I know the DHCP server is working, since the wired clients are still getting announcements and renewals. - plemansMar 17, 2022Guru - Experienced Userdoes it work if you set it up with it in router mode (does cause a double nat)