IP Reputation attack

I have a Seagate Harddrive attched to my Xfi that contains music for my Sonos system also connected. Starting today I have recieved 35 threat messages that says Comcast has blocked malicious from China, Moldova and the US. All within the past 3 hours. I click help me fix it and it says to restart the device, which I did. I also restarted the xFi. It also says to update the firmwear, which on the Seagate says is up to date and then to isolate it. I turned it off, but now cannot listed to music. What going on here? How is my external HD being attacked?