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C3700v2 – N600 WiFi Cable Modem Sudden Issues
I've noticed my router had a firmware update because the admin screen doesn't look exactly the same. I am not getting a lot of 408 type errors when trying to open a webpage...basically, I'm getting ...
I found a solution....
For starters, I didn't even know my lan connection was off and I was using all router-modem wifi the whole time since I got with Xfinity. The wifi has issues, there's no denying that, but things went back to normal once I enabled my lan connection and started actually using the ethernet cable I had running from my Netgear to my PC.
So now I'm not getting the 408s, pages not loading in or lagging in, under my lan connection. The only other issue I had was the website I'm building wasn't working under lan but I solved that by making changes in the Netgear port forwarding.
I do have wifi usage concerns still because my Firestick uses the 5g channel and my PC was using the 2.4g wifi channel. Since the lan connection uses the 5g, that places both the Firestcik and my PC on the 5g, which means if somebody is watching a movie or gaming on the Firestick, there could...maybe be bandwidth conflict....maybe not.
Anyway, my Firestick is the only thing that seems to use the wifi just fine on the 5g. I don't really use my phone for internet while at home, so I can't really say how bad the webpage loading will be using the wifi for that device or the pad.
Conclusion...
Use the local network (lan) computer connection with a Netgear router-modem combo, if you're on the PC that the Netgear runs to with the ethernet cable or other cable. If you're on a PC that is not connected directly to the Netgear and you have to use the wifi...
You're in serious trouble because what people were saying on Amazon about my Netgear model losing wifi stability over time, was obviously no lie! I bought it because the overall review rating was not that bad but clearly...Netgear has some issues as a brand.
PS, that warning at the top of my Netgear Admin page about not being connected to the internet is gone. Yay!
Do you have a screen snip of the cable connections page (shows upstream/downstream info) and the event logs?
I found a solution....
For starters, I didn't even know my lan connection was off and I was using all router-modem wifi the whole time since I got with Xfinity. The wifi has issues, there's no denying that, but things went back to normal once I enabled my lan connection and started actually using the ethernet cable I had running from my Netgear to my PC.
So now I'm not getting the 408s, pages not loading in or lagging in, under my lan connection. The only other issue I had was the website I'm building wasn't working under lan but I solved that by making changes in the Netgear port forwarding.
I do have wifi usage concerns still because my Firestick uses the 5g channel and my PC was using the 2.4g wifi channel. Since the lan connection uses the 5g, that places both the Firestcik and my PC on the 5g, which means if somebody is watching a movie or gaming on the Firestick, there could...maybe be bandwidth conflict....maybe not.
Anyway, my Firestick is the only thing that seems to use the wifi just fine on the 5g. I don't really use my phone for internet while at home, so I can't really say how bad the webpage loading will be using the wifi for that device or the pad.
Conclusion...
Use the local network (lan) computer connection with a Netgear router-modem combo, if you're on the PC that the Netgear runs to with the ethernet cable or other cable. If you're on a PC that is not connected directly to the Netgear and you have to use the wifi...
You're in serious trouble because what people were saying on Amazon about my Netgear model losing wifi stability over time, was obviously no lie! I bought it because the overall review rating was not that bad but clearly...Netgear has some issues as a brand.
PS, that warning at the top of my Netgear Admin page about not being connected to the internet is gone. Yay!
Hi! I've been having this exact same issue and it seemed to start last week. Slower wifi connection across the board and sustained periods of no connection whatsoever or brief, intermittent drops. I've even had drops when I've plugged my work laptop directly into the C3700v2 via ethernet cable.
When I log into the C3700v2's management page, I see the red banner stating that there is no internet connection and to call my service provider to activate service; this does not change with power cycles or a factory reset. In fact, after factory resetting the device, the modem/router took me to the initial startup page that would have had me call xfinity to activate service. Firmware looks to be up to date as well. Could this be the cause of my connection issues or is it just degradation of the product? Is there anything else I can try? I'm on my last legs before I purchase a new modem/wifi system. Thanks!
C3700v2 owned for 2.5 years. Provider = xfinity 100mbps. ~5 devices connected.
If you connect directly to the Negear, make sure you enable the local area connection adapter in network settings. That's the one you want to connect to and disconnect from your wireless adapter. You don't have to disable the wireless adapter, just disconnect from it and connect to the local area (lan) one. Chances are the problem is with the wireless connection and not the direct connection.
