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Forum Discussion
C3700 OCCASIONALLY DROPS CONNECTION
I have a Netgear C3700 and it keeps dropping the wifi connection. I would have to directly connect my laptop to C3700. This is for home use and both the laptop and C3700 are located in the same roo...
After digging into this I discovered that my HP 7800 printer was either sending or receiving web traffic that my logs on the C3700 was intupreting as a "DoS" (denial of service attack). Within a few seconds of these DoS messages my modem would stop all traffic. It would take several minutes for it to resync and come back up.
Here is an example of what to look for in log files:
[DoS attack: Teardrop or derivative] from 192.168.0.18, port 21358
You will see many entries in the log files for DoS attacks from outside—non LAN internet IP addresses—that do not create this issue. However, when I see a DoS from a LAN address as above "192.168.0.18" (My HP Printer) then the drops occur.
An easy test is to power off the printer for a few hours or whatever LAN device is at the ip in your log file. This should fix the drops.
I hope this helps someone in the future.