I have been watch my firewall logs and noticed that there is a lot of traffic through this port to varies IP's that I have nothing to do with.
IP's such as 193.1.208.229 129.15.41.39 208.91.197.27 and 70.57.237.99

If anyone has any ideas as to what it could be....

The computer on my LAN that they are coming from is a recent clean rebuild, with Sighthound running on it.

Cheers