cm700 modem did not make the change when I upgraded to 400mbps charter

Question

Hi, first post so be patient. Today I just upgraded charter internet speeds from 200mbps to 400mbps.. Upload took just fine I'm now getting around 21mbps from the 12 I had previously. However, downloads are still around 200. I was on with Charter IT for over an hour and they have it coming into the house at 480mbps. One thing they noticed is an error on the modem side but I guess did not know what. I have factory reset the modem, have reset a few times the Nighthawk 7000 router to no avail! Laptop speed testing is hardwired. Router and modem seem to be working fine. Have only had them both about 1 1/2yrs and have worked flawlessly. Please, if you have any advice or need any more info from me I will get you what I can. I read some help pages here and it looks as though the modem is doing as it should. So I'm a bit lost. Thank you in advance,

Photosquirrel

FURRYe38 · Answer

Had a power OFF of the modem for 1 minutes then back on been performed?

Try doing a factory reset with the coax cable disconnected. Then power OFF, plug in the coax cable and test with a wired PC connected directly with the modem.

Is there a external router connected between the modem and router.

Test with a different PC to compare directly with the modem.

FURRYe38 · Answer

Yes, remove the R7000 router from the mix and plug the PC directly in the the back of the CM modem. Check speeds here.&nbsp;

FURRYe38 · Answer

Seems like the R router is the bottle neck if your getting to spec speeds directly from the modem to the PC.&nbsp;&nbsp;I would factory reset the R series router and setup from scratch with a wired PC connected there. Besure to not enable any QoS, Traffic Meter or Access controls after setting it up. Just use default settings and change only the SSID name and PW. You might leave the SSID name and PW as default while you wire speed test with the router with out any interference from wifi devices.&nbsp;&nbsp;Might post about this over on the Nighthawk forum as well for this model router. Seen various issue with the 7000 and different FWs.&nbsp;https://community.netgear.com/t5/Nighthawk-WiFi-Routers/bd-p/home-wifi-routers-nighthawk

FURRYe38 · Answer

Ask to see if there maybe any older FW that will help with the R series speeds.&nbsp;PW = Password&nbsp;Disable Access Controls as this may limit speeds as well. If you disable access controls, any device you connect will get internet access. Disabling Access Control only disables the entire feature on the router while you trouble shoot.&nbsp;&nbsp;Good Luck.&nbsp;

photosquirrel · Answer

thank you so much for the reply and suggestions. I did do a factory reset of the modem but not with coax disconnected. I will try that. I did power off Modem and wait and restart, that did not help.&nbsp; I do use a nighthawk r7000 along with the cm700 modem. I will try the things you suggested. Where I'm a bit confused... Are you saying to take the ethernet cable that is plugged into the modem and into the router, take the one end out of the router and plug it directly into my laptop? Again, thank you for responding and for the suggestions.. Someone in the IT dept this morning at Charter said that my modem could not handle the 400mbps download but someone else yesterday said it should, no problem.. Support.. SMH!!

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cm700 modem did not make the change when I upgraded to 400mbps charter

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