I can't seem to get P2A to connect with my X-Plane 11 simulator.  I downloaded and installed both the XPUIPC and the P2A software.  When I open X-plane, I don't see it in the plugins.  I did change the .imi file to the correct IP address for my computer.  Any help with this is appreciated.

It could be XPUIPC.  Check what version you are using.  Version 2.0.0.0 (link in installation section of User's Guide) is good and the version 2.3.8 from Schiratti  (www.schiratti.com/xpuipc.html) should also work.

If that’s not it, try the following:
1.    Be sure you are connected to the internet. It must be a reliable connection.
2.    If it seems to partially connect but the Connect button does not turn Green, set the Weather option to a different source such as NOAA Real Time Weather and try again.
3.    English-US Language installed and set as Primary Language
4.    Working Microphone installed and set as Default Sound Input device in Windows
5.    Valid Call Sign – Try using the default call sign of Mfg: Beech; Tail Number: N431VB.  Press the Save button.
6.    Try running the program in Administrator mode by right clicking on the Pilot2ATC.exe file and selecting “Run as Administrator”

Regards,
Dave