Hello all Need some help please. I recently decided to get my own modem instead of renting one out from Xfinity. I got tired of their XB7. I bought a brand new Nighthawk CAX30 (AX6 AX2700) about 3 days ago from Costco. As soon as it was provisioned by Xfinity (Gig Speed Plan), I noticed the speeds were not there (Only about 200Mbps wired & about 150Mbps Wifi). I called Netgear and they blamed Xfinity (Down Bonded Channels were weak). Turns out it was a bit of their fault. Had Xifnity come out and they noticed that they were splitters on my line and going to other units on my condo building. They put a brand new coax line from my apt to the the box out in the alley. My speeds improved a tiny bit but they are not there yet. When the Tech tested the coax line in front of me, he was getting about 1200 Mbps. But when he hardwired to the CAX30, he was only getting about 250 Mbps. Technician gave up, blamed the router and left. Right now, wired to the gateway, I am getting about 280 - 385 Mbps and about 200 Mbps wi-fi. (Speed tests were done with several devices, Phone, Laptop, iPad, Nighthawk App and the Speed Test tool in the Router GUI) I I made sure the router is up to date, restarted it several times. The only thing I have not done is Hard Reset it after the Tech left. I wanted to know if there was any other settings I am missing before I Hard Reset it? If I hard reset and is the same result, is there anything else I can try? I wanted to try as much as possible before I spend hours on the phone with Netgear.. Thank you all for you help.

I have experienced the same issue with this router since buying it at Costco in July 2021. My firmware is up-to-date with version 1.4.10.8. After initial setup, I get 350 - 500Mbps direct from the router over Xfinity that is provisioned for 400 Mbps. Within hours, the rate drops to 120 - 150 Mbps. It does this consisetently. If I do a reboot, nothing is improved. This is consistent and repeatable. If I do a hard factory reset, speed is temporarily restored. This is consistent and repeatable. If I restore a backed-up configuration and then restore/overwrite + reboot, sepeed is temporarily restored. This is consistent and repeatable. This router needs better firmware is all I can figure.

You can try disabling qos, access control, parental controls, and traffic monitoring. then do a reboot and see if it hits full speeds. If it doesn't, then try the reset.

Thanks for the advice. My post is exactly relevant to the original poster's issue. As such, it was intended to bring value to the discussion: Re: CAX30 Slow Internet Speeds Yes, I have posted seperately seeking assistance.

I got a Halloween boo in that my issue is eerily similar. Yesterday I brought home a brand new Netgear Nighthawk AX6 AX2700 router fromCOSTCO (Firmware version 1.4.10.8).I had a 500 Mbps Internet + TV with WOW. Swapped out their WiFi router with the above. All checks out OK - still getting 500 Mbps+ speeds. Called them to drop the cable TV and increase the speed to 1 GB (internet only).No difference in speedtests. I see that many different factors can come into play. I have a 1GB Ethernet 5 port splitter connected to one of the ETH ports out of the Netgear. In my office, I have my Linux box connected vai ETH. Tested the speeds via dslreports/speedtest - both show abysmal speeds (~200 MBps).The Netgear Android Phone App shows ~450 Mbps download speeds. From the routerlogin page, I get similar results. I tried both 2.4 & 5 GHz with simialr results. All I want to know is how to verify that I am getting my money's worth from the ISP. Thanks for all your help in advance. Have a safe happy Halloween! Harry

I also found this in the forum. Reading.....https://community.netgear.com/t5/Nighthawk-Routers-with-WiFi-6-AX/Nighthawk-cax30-Horrible-speeds/td-p/2138847/jump-to/first-unread-message

CAX30 Slow Internet Speeds | NETGEAR Communities

17 Replies

plemans
Guru - Experienced User
Aug 26, 2021
You can try disabling qos, access control, parental controls, and traffic monitoring. then do a reboot and see if it hits full speeds.

If it doesn't, then try the reset.
- JohnnieWalker22
  Guide
  Aug 26, 2021
  plemans wrote:
  You can try disabling qos, access control, parental controls, and traffic monitoring. then do a reboot and see if it hits full speeds.
  If it doesn't, then try the reset.
  Yes, I made sure all that was turned off.
  - JohnnieWalker22
    Guide
    Aug 26, 2021
    UPDATE: I finally did the restore to factory settings. Now I am getting around 550 Mbps. Not the full speed yet, but definitely happier with the speeds.
michaelkenward
Guru - Experienced User
Aug 26, 2021
JohnnieWalker22 wrote:

I wanted to know if there was any other settings I am missing before I Hard Reset it? If I hard reset and is the same result, is there anything else I can try? I wanted to try as much as possible before I spend hours on the phone with Netgear..

You might get more help, and find earlier questions and answers specific to your device, in the appropriate section for your hardware. That's probably here:

Cable Modems & Routers

Modems are a bit specialist and, apart from plemans , there may not be that many cable modem experts hanging around in this section.

In the meantime you could visit the support pages:

Support | NETGEAR

Feed in your model number and check the documentation for your hardware. Look at the label on the device for the model number.

You may have done this already. I can't tell from your message.

I mention it because Netgear stopped supplying printed manuals and CD versions some years ago and people sometimes miss the downloads.

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CAX30 Slow Internet Speeds