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Forum Discussion
CAX80 problems
When you buy one of these at this price point, there's a certain expectation that it will just work. set it up once and pretty much forget about it. That has NOT been the case for me as pretty m...
I trpeople wrote:I am on my second Netgear CAX80 modem/router. I have had the same issues as you and I am also in San Diego on COX.
I have all devices in my home connected to the internet on both the 2.4ghz & 5ghz bands. Everything works except for my Samsung S20 Plus. I have gone though ALL the reset options via Samsung, but they say it's the Modem/Router.
Did you find anything to fix this? I am still searching Netgear with no sign of how to contact then directly. Chat redirects in a circle back to here and I cannot find a telephone number to get a technician.
I also had this issue with both a Galaxy S10+ and Galaxy S20+ phone and I think its related to the DHCP server on the CAX80. On your phone try using the Phone MAC address instead of a Randomized MAC address. Also try clearing out devices on the CAX80 device list. It seems to only affect WiFi 6 client devices.
My 2 cents
Thank you for your 2 cents. It helped, kind of... I still need to do a New System Setup everytime. I reboot the modem, but so far Internet works on Samsung Galaxy S20 Plus.
I did this:
Disable MAC Address Randomization in Android 10
Open the Settings app.
Select Network and Internet.
Select WiFi.
Connect to the UT wireless network (UT Open or EDUROAM)
Tap the gear icon next to the current wifi connection.
Select Advanced.
Select Privacy.
Select "Use device MAC"
I did this:
Disable MAC Address Randomization in Android 10
Open the Settings app.
Select Network and Internet.
Select WiFi.
Connect to the UT wireless network (UT Open or EDUROAM)
Tap the gear icon next to the current wifi connection.
Select Advanced.
Select Privacy.
Select "Use device MAC"
i tried the phone mac address thing too, nothing really fixed the problem with the CAX-80.
the "FIX" in the end was putting the CAX-80 back in the box and soon to be listed on ebay or craigslist.
i am running the c7800 now without a single issue for a month... its big and ugly but it works unlike the CAX-80. i'm on gigblast internet with COX and i get the same speeds with both docsis 3.1 wifi routers, so unless Netgear can find a solution for the much prettier CAX-80, its just junk as far as i'm concerned.
GL to you all!
JB
trpeople wrote:
Thank you for your 2 cents. It helped, kind of... I still need to do a New System Setup everytime. I reboot the modem, but so far Internet works on Samsung Galaxy S20 Plus.
I did this:
Disable MAC Address Randomization in Android 10
Open the Settings app.
Select Network and Internet.
Select WiFi.
Connect to the UT wireless network (UT Open or EDUROAM)
Tap the gear icon next to the current wifi connection.
Select Advanced.
Select Privacy.
Select "Use device MAC"- I appreciate your efforts to fix the issue with replacing the modem/router completely. I totally understand your frustrations (since I am going though them too). However, the modem/router you chose is AC (Wifi5) not AX(Wifi6). There's a huge difference in how this gets data to each device (see video link for more info: https://youtu.be/KufwPgJkUjw ). I'm still looking for a more solid solution. Considering how expensive the CAX80 modem/router is, I think Netgear should have a working product out of the box.
trpeople wrote:
I appreciate your efforts to fix the issue with replacing the modem/router completely. I totally understand your frustrations (since I am going though them too). However, the modem/router you chose is AC (Wifi5) not AX(Wifi6). There's a huge difference in how this gets data to each device (see video link for more info: https://youtu.be/KufwPgJkUjw ). I'm still looking for a more solid solution. Considering how expensive the CAX80 modem/router is, I think Netgear should have a working product out of the box.completely understand that i am missing out on wifi6 capabilites with the c7800, but i just needed working equipment and wanted a docsis 3.1 wifi router.
also FW version was unable to be changed, when going through the admin menu, i believe it says FW is pushed by the ISP, so how would i test a beta FW?
Just wondering if disabling of AX mode on the CAX changed any behaviors...
trpeople wrote:
Thank you for your 2 cents. It helped, kind of... I still need to do a New System Setup everytime. I reboot the modem, but so far Internet works on Samsung Galaxy S20 Plus.
I did this:
Disable MAC Address Randomization in Android 10
Open the Settings app.
Select Network and Internet.
Select WiFi.
Connect to the UT wireless network (UT Open or EDUROAM)
Tap the gear icon next to the current wifi connection.
Select Advanced.
Select Privacy.
Select "Use device MAC"
FURRYe38 wrote:Just wondering if disabling of AX mode on the CAX changed any behaviors...
trpeople wrote:
Thank you for your 2 cents. It helped, kind of... I still need to do a New System Setup everytime. I reboot the modem, but so far Internet works on Samsung Galaxy S20 Plus.
I did this:
Disable MAC Address Randomization in Android 10
Open the Settings app.
Select Network and Internet.
Select WiFi.
Connect to the UT wireless network (UT Open or EDUROAM)
Tap the gear icon next to the current wifi connection.
Select Advanced.
Select Privacy.
Select "Use device MAC"Fundamentally I think there are things wrong with this unit, 1) DHCP server hangs, 2) Entire unit reboots when ISP Carrier drops Modem signal, 3) Post reboot the modem randomly resets all settings to default, 4) Logs are lost after reboot/reset. It's a big mess but when it works its fairly stable.
my 2 cents
dadabunchie wrote:Fundamentally I think there are things wrong with this unit, 1) DHCP server hangs, What FW are you using?
Something I have not need since getting mine earlier this year.
2) Entire unit reboots when ISP Carrier drops Modem signal,
This is by design. I asked about this. :smileyembarrassed:
3) Post reboot the modem randomly resets all settings to default,
I saw this as well and should have been fixed.
4) Logs are lost after reboot/reset. Something I'm not sure about if the logs are kept after a reboot or even if you enable the logs for 5 secnds then select save logs again may capture the logs. I believe most routers and modems clear the logs on any reboot though.
my 2 cents
- If you disable the AX feature, you might as well just return the device and get a WI-FI AC device and save the money.
Here's the difference of Wi-Fi 5 (AC) vs Wi-Fi 6 (AX) - https://youtu.be/KufwPgJkUjwThe suggestion of disabling of AX mode on the modem is a troubleshooting step to see if the changes the interaction behavior between the modem and the wifi device. Some devices have some problems with AX mode being enabled, AX supporting or not. So temporarily disabling AX mode on the modem might help with some difference experiences and seems to be some sort of issue with one specific brand and model of Samsung devices. One does not have to keep AX mode disabled ALL the time.
Users are encouraged to contact both NG and Samsung regarding there experiences and hopefully some here, something will get fixed.
