Check the License Server - Arnold User Guide

Windows

In LMTOOLS, go to the Server Status tab and click Perform Status Enquiry.

Look for the 86985ARNOL_2018_0F license. That's the Arnold license.

OSX

Open a terminal and run this command to check the license server status:

/usr/local/flexnetserver/lmutil lmstat -a -c @localhost 

You should see something like this. Look for the 86985ARNOL_2018_0F license. That's the Arnold license.

Stephens-MacBook-Pro:flexnetserver stephenblair$ ./lmutil lmstat -a 
lmutil - Copyright (c) 1989-2015 Flexera Software LLC. All Rights Reserved.
Flexible License Manager status on Wed 8/23/2017 06:54

License server status: 27000@localhost
    License file(s) on localhost: /usr/local/flexnetserver//ARNOLD_2018_T_F.lic:

 localhost: license server UP v11.13.1

Vendor daemon status (on remfdxqfb2.ads.autodesk.com):

  adskflex: UP v11.13.1
Feature usage info:

Users of 86985ARNOL_T_F:  (Total of 50 licenses issued;  Total of 1 license in use)

  "86985ARNOL_T_F" v1.000, vendor: adskflex, expiry: 31-mar-2020
  floating license

    stephenblair Stephens-MacBook-Pro /dev/ttys003 (v1.000) (localhost/27000 104), start Wed 8/23 6:54

Users of 86985ARNOL_2018_0F:  (Total of 50 licenses issued;  Total of 1 license in use)

  "86985ARNOL_2018_0F" v1.000, vendor: adskflex, expiry: 31-mar-2020
  floating license

    stephenblair Stephens-MacBook-Pro /dev/ttys003