Federal and local officials investigating Verizon’s massive outage are increasingly pointing to a suspected server failure in New Jersey — though the company has stopped short of confirming a definitive cause.The telecoms giant was apologetic late Wednesday after hourslong disruptions knocked phones offline nationwide and even interfered with some 911 calls.The outage, which began Wednesday afternoon and dragged into the late night hours, triggered a flood of complaints from coast to coast as Verizon custom ...