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Forum Discussion
Blinking download light, slow download speed, DoS attacks on C7000
My C7000 modem router is giving me very slow download speeds (5 - 40 Mbps; I pay for 200 Mbps) and the download lightning bolt indicator light is blinking. I have contacted Comcast and done their tro...
Had a similar problem getting my C7100 to connect with Comcast and I had a technician out to the house. He immediately found the problem, a physical filter on the line which blocks some of the channels the modem needs.
Thanks both of you for your responses. The slow download speeds turn out to have resulted from squirrels nibbling on our cable lines; Comcast replaced them today and the speed is back to normal.
Regarding the DoS attacks, very few of them reference an IP address of any machine I have in the house - the vast majority are coming from foreign IP addresses.
| [DoS attack: Ping Of Death] from 77.2.109.144, port 0 | 1 | Sun Oct 22 15:28:57 2017 | 180.108.126.95:0 | 77.2.109.144:0 |
| [DoS attack: Illegal Fragments] from 77.2.109.144, port 0 | 1 | Sun Oct 22 15:28:23 2017 | 85.54.72.208:0 | 77.2.109.144:0 |