Despite the difference in computers, the connection to the internet is the same. Although that internet connection is painfully slow, I never had any issues pushing builds before this. If it is an issue with the connection, I could try to push a build from a location with a faster connection that's about an hour away from where I work/live. While that won't be a sustainable method of updating the game, it wouldn't hurt to test the hypothesis.
Satellite internet is the bane of my existence...