Latency

Hi everyone,

I run a smokeping server to manage my Business Internet connection.  My graphs on my Comcast access are weird. The latency starts increase the morning until it doubles and during the night (around 3AM), it decreases at the lowest latency. And it happens every single days, even when no one is at the office, or nothing is running on. This happens only on my Comcast Access.

Does someone have an explanation ?

Thank you