Download speed is 30mbps with 600mbps plan

@user_433037

Hey there! Thank you for taking the time to reach out to us on our Communities platform. I hate to hear you are experiencing trouble with your internet connection. Can you try running a speed test while connected directly to your modem using this site? https://comca.st/3qWwEWY

[Edited: Speed test link]

Hi hope your are doing well, I have the nighthawk c7000v2 I also am having the same speed issue as you on ethernet and wifi, on ethernet I get 300Mbps with the 600Mbps on the 2.4ghz I get about 80Mbps I never reach 100 on the 5ghz I sometimes get 200Mbps but it is mostly around the 100sMbps and it randomly looses connection on the 5ghz when using Zoom, I already had a technician come out and he changed all my lines and put in new ones but that was because I was getting a lot of T3 and T4 timeouts, for the speed issue the technician recommended I either downgrade to the 300Mbps because the Nighthawk c7000v2 he said it won't give me much higher speeds because it uses DOCSIS 3.0, or get a new cable modem router that has DOSIS 3.1, so I am now awaiting a new modem that I ordered and I have to see if my speeds improve. I have read online that many people that have switched to DOCSIS 3.1 have improved speeds greatly. (On the Nighthawk c7000v2 I previously had 15 devices connected to it on the 600Mbps plan but since my speed issues started I disconnected some devices I now have 11 devices connected which is the maximum devices connected on the 600Mbps according to xfinity but that doing that did not improve my speeds)

I have the same modem and am getting the same download speed as you.  i, too, am supposedly paying for 600mbps.