The Register: Win-XP kills Verizon DSL. The problem, he explained, was that the Verizon router had locked me out permanently, so I’d have to be associated with a different one. He switched me over, and that was that. The cause of this problem, however, originates in Windows-XP. As anyone who uses PPPoE (Point-to-Point Protocol over Ethernet) with ADSL will tell you, the MTU (Maximum Transmission Unit) has to be set to 1492 or less. On Win-XP, it’s set by default to 1500, which causes your machine to irritate a naturally anti-social router, which may then shut you out.

