Any update? Still having this issue. I only bought this pen because the tech support recommended that it is compatible with my laptop (XPS 9575 13 in 2-n-1).
I had a similar issue with my Dell Active Pen PN579X.
However, all I had to do, was change the mode it was in. Apparently, it had switched ink modes into one that was not recognised. Does that apply to your pens?
I am having the exact same problems with my pn556w. It worked a few months ago, and yes, I have a compatible device. The pen is "paired" with my computer but not "connected." Top button seems to be working, stylus is not working. I have downloaded and installed new drivers and disconnected and reconnected the pen multiple times.