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>some vital router functions and not simple DNS check How do you expect 99.99% of the world to get to facebook.com without DNS? It's pretty damn vital if you a

• smsm42 12y ago
  But their DNS doesn't actually depend on that server (at least according to the explanation above). Only the part of the code checking "do we have internet?" depends on it, and only because they use some internal company's address and apparently whoever is responsible for it doesn't know that if this host ever gets down it breaks the internet for all Belkin customers. So it's a simple case of miscommunication and failure to think systemically, not something fundamentally broken.