No questions really, just venting! Updating my Zumo 550. At our office, and taking an hour or so. We share a T-1 line with the office next door. Nobody even there today but they do have systems that are constantly on & communicating. Last time I did a Nuvii while in a rental condo on vacation, and that took 6 hours on the residential line there, dunno if it was DSL or Cable Modem.