I'm not with Laminar Research, just a fellow simmer in the UK.
When you download X-Plane 11, you have to be careful how much scenery you also download. If you try to download all worldwide scenery files at once, it may be too much for your internet connection and/or your laptop?
Therefore, try downloading X-Plane 11 with a minimal amount of scenery files first, to see if this brings any success?
Further, please advise the size of your laptop's hard drive, as this may be too small?