This is the standard process if your computer has an active internet connection. Open NI License Manager All Programs National Instruments NI License Manager : Click the Activate Software tab or the Login to Activate button. Sign in using your NI User Account credentials. Check for Licenses Check my account for licenses from the dropdown menu and click Manual Serial Entry : If the license isn't automatically found, select Enter a Serial Number and type in your 20-character serial number.

I can provide targeted troubleshooting steps based on your setup. Share public link

Open the software. A dialogue box will appear asking you to activate. Select Student License: Choose "Activate Student Edition" .

If your software is provided by a university, ensure your school's volume license server is active and that you are connected to the campus network or VPN.

: Look for the field labeled "New Serial Number" at the top of the page.

Required for standard online activation (offline methods are available if needed). Method 1: Activation During Installation

: Locate the 9-character alphanumeric serial number provided with your purchase, volume license agreement, or student access portal. Method 1: Activation via NI License Manager (Online)

Enter this code into the activation wizard and click . Key Considerations Activating Software - NI - National Instruments

Navigate to the official page ( ://ni.com ). Log in with your NI Account. Select Multisim 14.3 from the product list.

How to Activate NI Multisim 14.3: A Complete Step-by-Step Guide

Enter the unique serial number provided to you at the time of purchase or by your institution. Click .