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Forum Discussion
Solved
C7000v2 Speed Issues
Hello, Recently we were told by our ISP (Spectrum) that our Internet speed has increased from 100MB to 300MB. Not only did this not happen, but our upload speeds are now nonexistent when connected v...
Thanks FurryE38.
Well I have an update! Spectrum came out and replaced the line due to errors they saw, but it didn't resolve my issue. HOWEVER, they tested with the ethernet cables I was using and verified upload speeds worked fine ... so it isolated my upload issue to the PC. After researching extensively further, I discovered that people have been complaining for months about the "Killer" ethernet software that a firmware update caused it to kill upload speeds :). There's literally a single switch in their control panel you can punch to fix it, which I did. So Netgear is off the hook officially on this one :).
On the WiFi side, uploads have always been fine. The download speeds bumped up tonight after the improvements, but still not to 500mb ... its stuck at around 300-350. Well I was told by Spectrum that despite my device being able to handle 1.9GB, Spectrum only supports up to 400mb on that device, so that is tracking with what I'm seeing. I was only aiming for 300 in the first place anyway. Strangely, the PC that's physically connected is still well over 500mb regardless of what they say.
So bottom line the mystery is solved ... partly a line issue, partly a software issue. Thank you for the help in thinking this through FurryE38!
Well...the plot thickens.
I talked to a Spectrum tech a few weeks ago who insisted they were pushing out the 300mb speed and that the issue had to be with NetGear. Tonight I talked to Spectrum and they ended up upgrading me to 500mb instead of 300mb (still no extra cost) and when they pushed out the change, it did increase my speed on the physically connected PC from 100mb to 500mb. So they had to have been doing something wrong previously.
However, all is still not well, of course :). They also bumped me from 10mb to 20mb uploads, but uploads on the physically connected PC still are at 0mb as of a few weeks ago, and this change didn't correct that issue.
Wifi increased from 100mb to 250-280mb but nowhere near 500mb, but the upload speed did indeed go from 10mb to 20mb. And of course the Spectrum tech says they are pushing out the correct speeds so it's an issue with Netgear :).
Any recommended next steps?
Id get a onsite tech visit and have them look at your modem and the line going up to the modem. Have them install one of there modems to test with to see if problem follows or not. Then you'll know. Maybe time to upgrade the C7000.
Thanks FURRYe38. I hope we don't have to replace it - that would be immensely frustrating as the whole point of buying it 4 years ago was future proofing. I would likely go with a different vendor based on this experience. Hopefully Spectrum can give us something here.
I highly recommend next time, of you do have to get something different, go with separate modem and external wifi router systems. So if something happens to the modem, you still have a router system you can connect up to a new modem should something happen. And you can have more control over the FW upates on the router system as well. C and CM series modems don't allow for user FW updates.
Good Luck.
Thanks FurryE38.
Well I have an update! Spectrum came out and replaced the line due to errors they saw, but it didn't resolve my issue. HOWEVER, they tested with the ethernet cables I was using and verified upload speeds worked fine ... so it isolated my upload issue to the PC. After researching extensively further, I discovered that people have been complaining for months about the "Killer" ethernet software that a firmware update caused it to kill upload speeds :). There's literally a single switch in their control panel you can punch to fix it, which I did. So Netgear is off the hook officially on this one :).
On the WiFi side, uploads have always been fine. The download speeds bumped up tonight after the improvements, but still not to 500mb ... its stuck at around 300-350. Well I was told by Spectrum that despite my device being able to handle 1.9GB, Spectrum only supports up to 400mb on that device, so that is tracking with what I'm seeing. I was only aiming for 300 in the first place anyway. Strangely, the PC that's physically connected is still well over 500mb regardless of what they say.
So bottom line the mystery is solved ... partly a line issue, partly a software issue. Thank you for the help in thinking this through FurryE38!
Glad ISP helped on there side.
Ya Killer adapters have been historically one cause of posters issues for those use them. Killer has there own QoS features that seems to either not work as intended or not work with other router systems that already have QoS features running. Usually disabling the Killer QoS features fixes it or getting into a non Killer adapter resolves.
Ya, depending on wifi device design and support and this model modem, you'll not see much over 300-500Mbps on 5Ghz AC. Just nature of the beast and limiation of working with 2x2 MIMO and 80Mhz channel width.
Glad you got it working. Please mark your thread as solved so others will know. Be sure to save off a back up configuration to file for safe keeping. Saves time if a reset is needed.
https://kb.netgear.com/24231/How-do-I-back-up-the-router-configuration-settings-on-my-Nighthawk-router
Enjoy. 📡Thanks again Furrye38, and thanks again for this (and the earlier) helpful links!
👍🍻
Tim and Marilyn: What is the "single switch in my control panel to fix slow speeds for a NetGear AC1900 C7000V2 Modem-Router? Thanks
"After researching extensively further, I discovered that people have been complaining for months about the "Killer" ethernet software that a firmware update caused it to kill upload speeds :). There's literally a single switch in their control panel you can punch to fix it, which I did. So Netgear is off the hook officially on this one :)"
Hi swingtime! It is the "Prioritization Engine" - literally just turn it off and the issue is resolved. Well, sort of. Apparently the option turns itself back on after a reboot, so I've still got to figure that out. I've read that some people are just uninstalling the Killer dashboard and just using the base driver.