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Forum Discussion
Sloy
Aug 03, 2015Tutor
C6300 Frequent disconnects
Seems to be a common topic here, but don't think I've seen a definitive answer so gonna try again. Purchased a C6300 because it was (seemingly) the best modem / router out there supported by Comc...
Sloy
Aug 10, 2015Tutor
Holy cow, ElaineM - was out of town and didn't see your reponse a few days ago. Thank you SO much for trying to assist!
So, to answer your questions...
1. Not sure about LED lights since I don't sit within view of the Device.
2. The Micro-disconnects happen about every 10 - 15 minutes, but sometimes only once an hour, and sometimes once every five minutes. As I test, I opened cmd and did the following - ping -t 192.168.0.1 I ran this from my desktop hardwired to the device AND my laptop. When the micro-disconnects happen, on the Desktop there is no change - just repeated pings to the device. HOWEVER, on the desktop there are 4 ping attempts each time that are unsuccessful - "Request Timed Out" exactly 4 times each micro-disconnect. Always 4, so even though each disconnect is NOT on a fixed inverval, each is exactly the same amount of time.
Also, noticed something interesting that hadn't noticed before. Even though I answered the prompt to automatically log into my SSID, it never does anymore. I can see it, and select it, but it never auto connects to it. Curious.
Anyway, when home I will for sure check out the MTU size - very interesting.
Lastly, my firmware is v1.02.21, which, according to Comcast, IS the latest, greatest?
Thanks again for your help...
-S
Sloy
Aug 11, 2015Tutor
OK, did the MTU test and that's definitely not the issue. Did the test you suggested and @1472, things were fine, at 1473, got packets need to be defragmented. So, 1472 it is, plus 28 that equals 1500. WHICH, as it turns out, is EXACTLY what was already in WAN Setup.
Given that nothing happens to the computer that is hard-wired to the C6300 and the micro-disconnects only affect devices connected WiFi - regardless if it's to the AP or to the Router, am I missing some WiFi setting?
Any OTHER suggestions?
-S
- ElaineMAug 11, 2015NETGEAR Employee Retired
Sloy On the Advanced Wireless Settings, change your Fragmentation Length and CTS/RTS threshold to 2304. Observe what happens.
Regards,
- SloyAug 11, 2015Tutor
OK, have made the change and will see if there's a difference. Leave Preamble mode to Long Peamble?
FWIW - the values were
Fragmentation Length: 2346 (Which looks like it was the MAX)
CTS/RTS Threshold: 2347 (Which looks like it was the MAX)
- SloyAug 11, 2015Tutor
Just realized why this probably WON'T work - on that same page I've actually unchecked the Wireless Gateway Radio because I'm pushing my WiFi through my Linksys Access Point. However, as I mentioned previously, whether I use the AP and disable the C6300 or if I use the C6300 and disable the AP to broadcast my WiFi, the micro-disconnects still happen. And to be sure, when I say I've disabled the AP, I've tried turning off the broadcast AND pulled the power from it - either way, the C6300 alone experiences the same disonnects.
Also, why I don't think the Linksys factors into things is because prior to getting my C6300, I used a Comcast Gateway and had NO disconnects. The Comcast device was way under powered, but using the Comcast and Linksys did NOT cause the same issues. As such, the only "new" factor is the C6300.
-S