Windows XP computer netBIOS name registration not working?

[shadowwyvern]

Hello,

I noticed there is a lot of broadcast traffic on my network - and after capturing that traffic with Wireshark, it all seems to be coming from a single windows XP computer. Wireshark's "Info" field tells me that the machine does the following, all within 3 seconds, spaced equally:
3x "Registration NB Hostname <1f>"
"Release NB Hostname <1f>"

Is there something misconfigured on this machine? The only relevant server on the network is a pfsense router that handles DHCP and DNS resolution. This particular machine does not have any static entries in pfsense (no DNS redirect, no static IP). Thanks for your help