PN338 M Active Pen and Inspiron 7573

I purchased an Inspiron 15 7000 2-in-1 laptop in 2017 and it came with a PN338M Active Pen.  I didn't start using the pen until this year.  Last week it quit working.  I swapped out the battery (twice), and it still didn't work.  I thought it might be the pen, I purchased a new PN338M Active Pen.  It arrived today, and it doesn't work either.  What am I doing wrong? 

Please help!