RPi: Plex Server running, but cannot access it

I just installed Plex on my raspberry pi. I have been trying to access it through the web browser. using this address http://192.168.1.21:32400/web. The IP address being the address of my rasp pi. I am using the latest Jessie distro. I tried several thing with no luck

1. pi@raspberrypi:~ $ sudo service plexmediaserver start
   pi@raspberrypi:~ $ sudo service plexmediaserver status
   â plexmediaserver.service - LSB: Plex Media Server
   Loaded: loaded (/etc/init.d/plexmediaserver)
   Active: active (exited) since Sat 2016-11-05 19:29:40 CDT; 12min ago
   Process: 367 ExecStart=/etc/init.d/plexmediaserver start (code=exited, status=0/SUCCESS)

   Nov 05 19:29:38 raspberrypi systemd[1]: Starting LSB: Plex Media Server...
   Nov 05 19:29:39 raspberrypi su[390]: Successful su for pi by root
   Nov 05 19:29:39 raspberrypi su[390]: + ??? root:pi
   Nov 05 19:29:39 raspberrypi su[390]: pam_unix(su:session): session opened f...0)
   Nov 05 19:29:39 raspberrypi su[390]: pam_unix(su:session): session closed f...pi
   Nov 05 19:29:40 raspberrypi plexmediaserver[367]: Starting Plex Media Server:...
   Nov 05 19:29:40 raspberrypi systemd[1]: Started LSB: Plex Media Server.
   Nov 05 19:41:42 raspberrypi systemd[1]: Started LSB: Plex Media Server.
   Hint: Some lines were ellipsized, use -l to show in full.

I tried to see if the plex is using the port.
pi@raspberrypi:~ $ sudo netstat -lntp | grep -i plex
pi@raspberrypi:~ $

netstat returned nothing. I assume that plex is not using any ports.

I also tried this from my research online:

pi@raspberrypi:~ $ sudo bash /usr/lib/plexmediaserver/start.sh
bash: /usr/lib/plexmediaserver/start.sh: No such file or directory
pi@raspberrypi:~ $

Not sure what that means or how to fix it.

I am not a linux guru. I am a super novice user so I am not sure how to troubleshoot this. Any suggestions on how to get the Plex service to use the port? Or how to get it to work right?