I have recently dumped my Vodem for a naked package (no home phone) complete with wireless router; recently Zonealarm has been blocking traffic from 169.254.33.9. Is there something amiss?
This address is a reserved address ("link local"). Routers shouldn't be forwarding this from the Internet to your LAN, so it should be something internal.
Check you router configuration - what's the IP address for your router and DHCP?
A 169.254 address is self-assigned by a host when DHCP requests go without response. the subnet is not routed on the wider internet, so it must be coming from your LAN.
try checking your arp cache when packets arrive. that'll help you by at least identifying the hardware address (MAC address) of the offending device. (use "arp -a" in a cmd.exe window).
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