Intermittent Lag Spike

Hello Everyone,

I have been receiving intermittent lag spikes while browsing the web, gaming, and watching movies. This is all coming from various computers, phones, and other devices in my home.

I managed to run a tracert to 8.8.8.8 (google) when this occurred and found that my latency was over 100ms. Pinging google showed the same thing as well. Any tips or help would be greatly appreciated. I am using the supplied modem from Cox, but I would like to make sure this is the problem first before replacing the modem. I have had this modem for almost 7 months and I am just now experiencing this issue.