Goodnight. It happens exactly the same. Yesterday started unloading, and made 250 Mb in 2 hours (I have a similar connection to yours). I took it out of desperation thinking maybe the line was wrong that day. But this afternoon I put it to download again and has thrown more than four hours for 1.26 Gb. But the best ending to download, update, reboot the system and ... Surprise, he gets to download the update again showing it will take 4 hours
This update is an absolute disgrace; another example of selflessness that Apple has, for some time here in their computers. I have been with Apple since 2000, and what was once being happy day in, day out, with wonderful, safe and efficient computers, is becoming a similar disgust when he had to microsoft Windows. The mobile mess, the tablet and the little clock where we said, and engaged in operating computers in a position (ie, as before). See if they learn that computer users, especially professionals, we are the faithful infantry was there when the company went half dead, not modernitos carried away by fads. Because since there iOS, this is going downhill without brakes.