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Netgear Nighthawk X4S AC3200 Wifi Cable Modem Router (Model C7800) Internet randomly drops
Netgear Nighthawk X4S AC3200 Wifi Cable Modem Router (C7800-100NAS) Model: C7800 Firmware Version: V3.01.36 I've recently purchased this netgear cable modem router. I've activated it with Xfinity ...
I have a Nighthawk C7800 and am having the exact same problem. Ive had Comcast come out and I have spoken to them on the phone countless times - but they havent been able to permanently fix the issue. Were you able to resolve your problem?
My post regarding dropping internet subsided somewhat, but lately I have been experiencing DOS ATTACKs and I've had my Amazon Echo (Alexa) drop as well as my porch Security Camera. The other day, my Netgear WiFi Extender dropped from the Internet and I had to reboot the AC3200 to get everthing to work. Numerous DOS Attacks over the past couple days regarding "UDP Scan" "ECHO CHAR GEN" AND "SYNC FLOOD". Searching the IP addresses (using "Who Is" on Google) gives me various countries (although they could be fake ones). Somewhat concerned about these "Denial of Service" DOS Attacks. Are Netgear Nighthawk Modems under Cyber Attack? What can be done to stop them?
| FROM IP: | COUNTRY | |
| 1/17/2018 | 80.82.77.33 | SEYCHELLES |
| 178.223.136.143 | SERBIA | |
| 185.94.111.1 | RUSSIAN FEDERATION | |
| 1/18/2018 | 113.96.223.207 | CHINA |
| 184.105.139.101 | USA - DENVER, CO | |
| HURRICANE ELECTRIC | ||
| 185.13.36.43 | FRANCE |