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Jjoshrtca
Tutor

CAX80 DHCP not working

Like the title says. I’m just gonna repost lurksalot post from the link since it sums everything up that I and others are experiencing.

https://community.netgear.com/t5/Cable-Modems-Routers/Cax80-keeps-dropping-internet-connection/m-p/1...

“ My Gateway: Nighthawk CAX80, FW V1.1.0.41 - just bought less than 7 days ago.

I am having the same, if not a similar, issue where I get the "connected, no internet" message. I primarily see this on mobile device. But end rebooting the CAX80. This is only impacting the wifi connection as I am hard wired to my work laptop with no issues. I am using a RG6 coax cable. I do not have any splitters, etc.

At the time where I re-attempted to connect to the wifi with the mobile phone I see this in the log;
(I replaced numbers with #)

[DHCP IP: 192.###.#.##] to MAC address dc:bf:e9:a4:eb:2c 1 Tue Sep 22 08:08:22 2020 192.168.1.43:0 0.0.0.0:0

When the CAX80 works as expected it performs well, but I need to try and resolve this before my return window closes. I have reset to defaults twice in the last few days.”
Message 1 of 5
FURRYe38
Guru

Re: CAX80 DHCP not working

Is AX mode enabled? What happens if you turn OFF AX mode? 

Try setting a IP address reservation ON the CAX for your wifi device. 

 

What DHCP IP address pool range are you using? Default? Try setting a smaller size. 192.168.1.100 thru .200. 

 

What wifi devices do you have? Mfr and model#

 

 

My Setup (Cable 1Gbps/50Mbps)>CM1200 v2.02.03(LAG Disabled)>RBK853 v3.2.17.12
RBK50 v2.7.2.104(WW) Circle Enabled
Additional NG HW: C7800/CM1100/CAX80/CM2000, Orbi CBK40, R7800, R7960P, EX7500/EX7700, XR450 and WNHDE111
Message 2 of 5
Jjoshrtca
Tutor

Re: CAX80 DHCP not working

Setting dhcp suffix to 100-200 broke it. No device can load anything now. Might just say f it and return this pos.
Message 3 of 5
Jjoshrtca
Tutor

Re: CAX80 DHCP not working

WELP I COULDN’T DO THAT BECAUSE LEVEL 1 TECH SUPPORT WOULDN’T LET ME RETURN IT WITHOUT PAYING FOR A WARRANTY I ALREADY PAID FOR!!!!!
Message 4 of 5
FURRYe38
Guru

Re: CAX80 DHCP not working

Please contact a forum moderator to have them help you out.

@vkdelta 

My Setup (Cable 1Gbps/50Mbps)>CM1200 v2.02.03(LAG Disabled)>RBK853 v3.2.17.12
RBK50 v2.7.2.104(WW) Circle Enabled
Additional NG HW: C7800/CM1100/CAX80/CM2000, Orbi CBK40, R7800, R7960P, EX7500/EX7700, XR450 and WNHDE111
Message 5 of 5
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