Does anyone's Mobile Hotspot continue working after the screen blanks? It cuts out on my 10536 920 connected to power or not and I can't see how to change that behavior. It did not used to do that (last time it worked) and still doesn't on my 1520 running 8.1. If this was resolved I'd upgrade my work 1520 today but the lack of usable Hotspot behavior is preventing me.