i bought an Active Pen 2 a couple of months ago to go with  my Yoga 520.

Initially everything worked brilliantly and I used to write all my notes in OneNote.  After about 8 weeks it just stopped working.  I changed the main AAAA battery, but nothing changed.

it is still connecting to the laptop correctly because the top button still brings up the Windows Ink screen, but the main barrel buttons do not do anything (don't bring up the Eraser) and the pen no longer writes or brings up any ink in applications.

Has anyone experienced the same issue and can offer any advice to fix the problem?  Thanks

I'm having the same problem with my Yoga 920. The pen is connnected and reports it's battery level. Pressing the eraser button makes the ink workspace appear. Other than that the pen does nothing.

Hi jessehattabaugh!

Welcome to the Community Forums. 

Try to remove the battery (AAAA and the small batteries for Bluetooth) and observe. In addition, make sure the nib was fully inserted into the pen by pressing it against a hard surface but not that hard as it might break. Let us know how it goes. 

Any solutions ?

Also Yoga 920, pen is not working (buttons)

Connected and battery is good, also tested on another pen, also buttons are not working

what it might be ?

With clean Windows i remember it worked