One pc causing comcast modem reboot

sillysaxon

Reputable
Dec 2, 2014
3
0
4,520
So this is a weird issue.
My Comcast XB3 Xfinity router will intermittently reboot every 20 minutes or so, but only when my bedroom PC is connected to it.
Whether there are 10 devices or just one, it's only this PC that causes this.
I've turned it off and tried downloading a game and playing a game and having the internet run on a bunch of other computers just to make sure it's not network traffic causing it.

It's not, it's just this PC, and the issue only started Monday.
It uses a Belkin USB WiFi to connect, I have the latest drivers for the NIC.

There is nothing in the router log to indicate that there is any trouble with the modem. It just reboots. Sometimes when downloading, sometimes when searching the internet, sometimes when just sitting there doing nothing, but it's always just when this one specific PC is online.

Any ideas?
 
Solution
Here is the two most likely possibilities:

1) PC is infected with a botnet or other malware and causes the modem to be saturated with requests and it reboots.
2) Wifi adapter on pc is bad.

Thus the best course of troubleshooting is to try computer pluged in via hardwire to modem and try Wi-Fi adapter on a different computer.
Here is the two most likely possibilities:

1) PC is infected with a botnet or other malware and causes the modem to be saturated with requests and it reboots.
2) Wifi adapter on pc is bad.

Thus the best course of troubleshooting is to try computer pluged in via hardwire to modem and try Wi-Fi adapter on a different computer.
 
Solution