Its something on your computer using port number 44501. Do you user Keiro Personal firewall per chance?
It uses that port for Logging of blocked pop-up and pop-under windows.
If pop-up blocking is enabled (see chapter 14.1. The Ad Blocking tab), a special script is used for corresponding webpages that sends Personal Firewall Engine information about blocked pages. Traffic is performed by TCP protocol through a special port (44501).
More
here...