Hello, thank you for a prompt reply.
I recently purchased a refurb Lenovo TinkPad w windows 10 pro.
I added Avast Premium for security.
Avast found port 7547 open..on Xfinity account I See I have an Arris TG1682G. I could port forward etc. But as I plan to use this Computer for business purposes, I need the security .
do not have my own hardware router yet, but want to close this port.