Recently purchased Nighthawk CAX80. Never had problems w/ my internet connection before hooking up the Cax80. For last 2 wks since my Cax80 has been connected, im getting disconnected like every 20 min, ethernet & wifi. When I check out my Nighthawk app, it tells me I'm connected. Doesnt tell me I'm disconnected til I try to do a speed test. I've spent hours on the phone w/ NG "expert techs." Thats just been frustrating (language barrier & wait time) & a waste of time. I called Cox cable to make sure everything was good on their end. They said signal & connection are strong. When I lose connection, the lights continue to light like normal. I have only 2 devices connected. My cell & a streaming box. Any advice or help would be great. I read the posts above & I'm wondering if that worked?

ive recently experienced same issue Ive had my CX80 2months now and all of sudden loses internet This unit WAY too Costly to have this issue Considering returning

That must be the routine solution "call your ISP check signal blah blah blah." Been there done that. What their own tech told me was, "this is their newest model, so they are working out kinks." Nice, what a waste of $460.

Hi,Thanks for your help with this. I replied earlier in this thread, so I wanted to add that I also have Cox. My CAX80 issue worsened. Overnight I monitored the connection on a Motorola phone with Wi-Fi 4 ( 802.11n) and starting at about 2:30 am and ending about 3:30 am there were multiple disconnects. My Wi-Fi 6 (AX) client, Surface Pro, did not have this issue. The wifi icon, on the Motorola, displayed with an 'x', which essentially means connected with no internet. I checked the logs and the description was something such as, 'WLAN rejected, incorrect security...'. Throughout the day it has become instable and was no longer giving connectivity to the hard wired laptop. Restarting the modem resolved this, but not a long term solution. When the CAX80 is working as expected it works great. The Surface Pro speed test was always above the speed plan I subscribe to. In fact, all devices (Wi-Fi 5 / ac) consistently had higher speeds. I'm going to return the CAX80 for a replacement. I want to this thing to work out. Thanks.

How can I get that? Everything loses connection. I took a screenshot of my internet port settings. My ISP said my signal is very strong. They came out & chkd my connections & said everything was good on their end &my end.

Lost wifi connection on all devices, again. Hard wired laptop and it had connection but could not reach router at www.routerlogin.net only with 192.168.100.1 Cable Connection page looked good Under Advnaced Home, Internet Port was orange\amber color. For a while Connection Status, properties, i.e. IP Address, Subnet Mask, etc. values were all 0'z (zeo's). They eventually populated after about 30 to 45 minutes and Internet Port turned green. The CAX80 is unstable at this point. I'm going to hold off on taking it back (again), as I have another 12 days for a refund. Hopefully it stabilizes. Something just isn't right. I've done all I can as my skills are limited as a consumer. Given the price point on this device I shouldn't need to peform troubleshooting to get it to function properly, however I am willing to. I am hesitant to work with Netgear tech support as I've not had good experience with them, but will give them another opportunity. Thank.

Cax80 keeps dropping internet connection

68 Replies

plemans
Guru - Experienced User
Aug 23, 2020
What firmware is on the router aspect? (the cax80 has firmware for modem and for the router)
Do you have a screen snip of the cable connections page (all of it) and the modem logs? it helps us see if its a line issue.
If you have any coax splitters, amplifiers, or attenuators in line, try it with them removed. Also check the coax for bad/cheap connections, kinked/damaged wire, extended runs, etc.
- LindaD100
  Initiate
  Sep 07, 2020
  ive recently experienced same issue Ive had my CX80 2months now and all of sudden loses internet This unit WAY too Costly to have this issue Considering returning
  - plemans
    Guru - Experienced User
    Sep 07, 2020
    LindaD100 If you want to start your own thread, we're happy to help.
    If you start one include a full description of the issue, your firmware for modem and router, and a screen snip of the cable connections page and the logs.
- BEB7474
  Star
  Sep 13, 2020
  Thank you for responding. Im not using a splitter or anything extra. I have my streaming box connected via ethernet & phone is connected via wifi. I took a pic of firmware. Not sure where to find modem firmware. Any advice would be great
  - plemans
    Guru - Experienced User
    Sep 13, 2020
    do you have a screen snip of the cable connections page and the logs?
Ramonabeth
Tutor
Sep 13, 2020
I don't see a resolution to this issue. Did you get a resolution through a support ticket?
- FURRYe38
  Guru - Experienced User
  Sep 14, 2020
  Are you having problems with your CAX80?
  Does the entire CAX80 loose internet or just wirless?
  
  Have the ISP check the single on the service line up to the modem.
  Be sure there are no coax line splitters in between the modem and ISP service box.
  Be sure your using good quality RG6 coax cable.
  Ramonabeth wrote:
  I don't see a resolution to this issue. Did you get a resolution through a support ticket?
  - Lurksalot
    Apprentice
    Sep 22, 2020
    Hi,
    
    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.
    
    Thanks
BEB7474
Star
Oct 03, 2020
I'm still having the same disconnection problem w/my CAX80. I took a screenshot of my event log, hoping something can be identified from that.
- FURRYe38
  Guru - Experienced User
  Oct 04, 2020
  Have the ISP check the signal and line quality UP to the modem. Be sure they have provisitoned the modem correctly
  Be sure there are no coax cable line splitters in the between the modem and ISP service box.
  Be sure your using good quality RG6 coax cable up to the modem.
  Be sure to power OFF the modem for 1 minute them back ON.
  https://community.netgear.com/t5/Cable-Modems-Routers/New-CM1200-self-assigned-IP-address-via-Ethernet-Connected/m-p/1971839
  BEB7474 wrote:
  I'm still having the same disconnection problem w/my CAX80. I took a screenshot of my event log, hoping something can be identified from that.
  - BEB7474
    Star
    Oct 04, 2020
    I'm not bothering my ISP anymore. They have gone above & beyond to help me out w/your modem/router. They even sent a tech out who physically went through my connections & setup. I've lived in the same place for 5 yrs & have never ever had a problems w/ my wifi connection or equip.
    It seems my connection has gotten better in the last 2 wks. But my streaming box which is hardwired to my cax80 seems like it temporarily loses connection a cpl times a day.
BEB7474
Star
Oct 03, 2020
Event log.
- FURRYe38
  Guru - Experienced User
  Oct 04, 2020
  Disregard that link I sent, meant to include this one:
  https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/td-p/1530376/jump-to/first-unread-message
  BEB7474 wrote:
  Event log.

Forum Discussion

Cax80 keeps dropping internet connection