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Forum Discussion
C6300 Frequent Disconnections with Comcast
I've been having a similar (but still different) issue as this thread.
However, I do not have an additional AP, and my issue occurs over ethernet as well. To save you reading a different thread, I'll describe my own problem from scratch:
I'm on my second Netgear C6300. With both, I've had frequent disconnections ranging from every minute to every few hours. They are, as the other user called them, "micro disconnects." I generally reconnect within 10-15 seconds. .
One thing that is strange is that after using ping -t 8.8.8.8, my pings have zero interruption or delay even when I disconnect. This is particularly baffling to me.
I'll list some info:
- This occurs across multiple devices, wired and wireless, on multiple OSes.
- This is all on Comcast.
- The cabling in my building was recently replaced, and the problem has occurred both before and after that has happened.
- I have very appropriate signal strength and SNR ratio. I have 38.6-38.9 SNR downstream, and I have a power of about 46.0dBmV on channels 1-3 for upstream.
- I have tested for optimal MTU, which is 1500 (the default setting). I've contacted Comcast, and so far, they don't seem to be able to find any issues.
- My firmware is indeed the most up-to-date according to Netgear's page.
- From what I can tell when I disconnect, the C6300'S LEDs remain unchanged.
- Power cycling doesn't erase the issue, but if the disconnects are VERY frequent (every 1-5 minutes), it will spread them out to more like every 10 minutes to an hour.
- My speeds are great while connected. 120-180Mbps down and about 10Mbps up.
- There doesn't seem to be anything in the logs or event logs that coincide with disconnections at a 1:1 ratio.
There are some other troubleshooting I've done, but I can't remember what else there was. I'll update as I think of them.
Does anyone know what else I could do? I'd rather not have to buy a new router if I can avoid it.
5 Replies
Hello ThoughtA
We can try and see if its a DNS issue we just need to change the DNS in your modem. Log into your router then select Internet then click the button that says Use These DNS servers in the first Line type 8.8.8.8 in the second Line type 8.8.4.4 then apply the setting and see if those disconnects stop or not. Hope to hear your feedback.
DarrenM
Weird. I could swear I had responded to this. Thanks for the suggestion! I made that change several hours ago, but I haven't really been here to monitor it. I'll let you know if it helps at all.
Thanks again!
It looks like I'm unable to edit my posts. I apologize if I'm missing how to do that. I've had at least one micro disconnection since my previous post saying that I'd changed my DNS settings. I suspect this will end up not resolving the issue.
Comcast is sending me a gateway and a splitter so I can test both routers at the same time. Hopefully that will yield results. I'm still open to suggestions here, of course! I'll update anything else I find out.
I had this issue as well, except I have the R6900 model. The problem seemed limited to the wired ethernet connection. Netgear support thought it was a hardware problem and suggested I return my router (since it was new). I purchased a replacement, but encountered the same problem.
I did some research and found a solution that may work for some users.
On Windows 7, in the Control Panel, select Network and Sharing Center
Select Change adapter settings (on the left)
Right-click on "Local Area Connection" and select Properties
Select Configure...
In the Property box, scroll down to "Speed and Duplex"
In the Value box, select either "100 Mbps Half Duplex" or "100 Mbps Full Duplex".
Half Duplex seems to have resolved the problem for me (it's been a week). This most likely disables gigabit speeds for file sharing from this PC, but that is not a problem for me. I know it would be for some users. I just wanted to throw this out there as an option.
Thanks.
