Visited SLC service center, they sent current nav update. It keeps loading but will not complete. I have a Google Mesh point IN THE GARAGE. 5 bars on iPad, speedtest gives 158 Mb download. 3 bars in Tesla, Speedtest on Tesla browser shows 19 Mb download. Actual download of Nav software is 3.6 to 3.9 Mb/sec. 2 weeks ago, screen locked and we performed a reset- could this be part of the problem? I have had several nav systems in previous cars and navigation would work even with old data- isn't it pretty stupid not to keep Nav working with old data?