Seen this before with other kit.......
Some scruffy manufacturer decides to setup a 'secret' heartbeat server,, hundreds of thousands of products contact heartbeat server.
some idiot updates server, then server thinks it is under attack. mass disconnects and blockages of 'offending' ip addresses.
The question Belkin users should be asking themselves, is what happens if Belkin goes bust.
some Chinese & Taiwan manufacturers do this with their kit as well.