Comment by deepGem

There is one key issue of keeping lasers aligned for long durations between satellites and even between a satellite to a ground station. There are vibrations in satellites and even a tiny bit of that vibration translates to beam misalignment. Am not an expert though. That could explain the bursts.

So it's hard to sustain the theoretical 100GPS connection for hours let alone days across 2 end points which are in constant motion.