gllCAX80
I have a Nighthawk model CAX80 cable modem and router. Purchased from Best Buy two weeks ago. Everything seems to be working correctly except the "DOWNSTREAM" light on my modem is flashing white. I've reset this numerous times and after it reboots it stays solid white for about one or two days then starts blinking white. Everything seems to be working correctly. Is it supposed to be blinking white? The instruction sheet says that the modem/router is scanning for a downstream channel. I've waited several days to see if the blinking light would stop but it doesn't. How do I correct this and is this normal. Any insight would be appreciated. I paid a lot for the modem/router. I'm hoping it's not defective.CAX80- Login/firmware/smartconnect
To whom this may concern: I have a few issues that I could use assistance with. I wanted to login in to my router...I got past the UN/PW page, then, entered my serial number. I got to the page that asked for my answers to my sercurity questions: Nothing worked? How do I get around this? I want to update my firmware? How? How do I disable smarconnect? I have a few things in my house that will only connect to the 2.4ghz band, and not the 5ghz? Any help is appreciated! Thank you, DuaneCAX80 wifi occasionally hangs
I have had a CAX80 for several years, generally very good. Perhaps once a month the wifi stops working. The RJ45 connections still work fine. I power cycle the CAX80 and all works again for about another month. Any ideas? I am considering adding a 120V timer to power-cycle the device once a week.Poor cable connection error message
I have Xfinity internet service. I have the Netgear CAX80 router/modem that I own. This was recommended by Xfinity. I read in the forums that the incoming speed is to fast for the router/modem? I am confused by this and don't understand why Xfinity would tell me to purchase something that doesn't work? My home computer and streaming on the TV in the living room, the speeds are fine, no issues or problems. Netflix on the TV in the bedroom is a little slow to load, but this works off of a wifi mesh system. Do I need to add a splitter to split the internet cable coming into the router/modem when I'm not having issues? I'm not a gamer so not sure why this would be an issue. thanks. Brian See stats from admin page below. thanks for any help.CAX 80 injecting malformed TCP RSTs
I have a CAX80 that appears to be actively interfering with and terminating encrypted TLS connections by injecting malformed TCP Reset (RST) packets. This occurs even with the following disabled: IPv4 Firewall DoS Protection SIP ALG Protection Engine Is there somewhere else I'm missing? A little context: I've noticed this happen on occasion when using OpenVPN AS web interface, as I admin my company's VPN at times. But it was only an occasional nuisance. Now I'm working with an AI agent, and I have to constantly retry due to this, upwards of 20-30 times sometimes, which also causes the agent to lose track of what is was in the middle of doing, but eventually the retry will work. However, if I create an SSH tunnel, and launch the agent that way, it works flawlessly (presumably because the tunnel is masking some signature from the router that causes it to insert these packets, i.e., it's not watching traffic over tcp:22, but is doing so over tcp:443). tcpdumps taken from my laptop connected to the CAX80 show the following signature: A TCP RST (Reset) packet is received. The RST packet contains 6 bytes of zero-filled payload (00 00 00 00 00 00). Standard TCP RST packets should have a 0-byte payload. The TTL (Time To Live) of these RST packets is 102, while the remote server (daily-cloudcode-pa.googleapis.com) packets arrive with TTL ~118. This proves the packets are generated locally by the CAX80, not the remote server. Some of the behaviors I've observed through the tcpdumps: With Protection Engine enabled: Connection is reset immediately. With everything disabled: Connection hangs for a few seconds, then is flooded with the exact same 6-byte RST packets (TTL 102). So is this just a firmware/hardware bug at this point? Or is there something else I'm missing that needs to be disabled for it to stop injecting these RSTs? The only other thing I can think of is to put the thing in bridge mode, then go buy a different wi-fi router.Understanding how CAX80 works
I have this with xfinity internet. I have the two wifi networks set up, 2.4 & 5. The router/modem is in one end of the house. I can get a wifi signal on my TV in my bedroom through ROKU that is loaded on the TV. Roku signal meter says the connection is excellent. Works OK< Netflix speed is very low, but works. Problem is the Roku can't find or connect with the 5.0 wifi signal. I don't understand why it can find one signal from the router, but not the other faster signal? Appreciate any help. BrianEvery month I have to reconfigure the CAX80
Mine is different; every month, the CAX80 internet connection must stop, and then will require a password change. I have been having the same problem for 4 months. Every month I have to reconfigure the CAX80. This month is twice. I am tired. Is frustrating. I have called and spoken with their customer support/ technician unit 4 times, and I still have the same problem every month. The problem is that it has been more than four months since I purchased this CAX80, so I can't return or replace it.Using Nighthawk web app to turn off wireless radios
I'm trying to turn off the wireless radios on my CAX80 using the Nighthawk web app. The support chat system says I should go to Advanced > Setup > Wireless Setup and then "Uncheck the Enable Wireless Router Radio checkbox for the desired band." However, there is no "Enable Wireless Router Radio" checkbox to uncheck. Can the web app still be used to disable the wireless radios on this model? Web app version is V5.1.1.8.