Knowledgebase : Autodesk

The License Manager is not functioning or is improperly installed. Revit will shut down now.

Many users have been encountering this error that's preventing them from launching their Autodesk CAD applications (such as Revit, AutoCAD or Inventor).

More often than not, this error seems to be occurring for users who have not recently run the Autodesk Desktop App, nor patched either their installed Autodesk CAD application, nor installed any of the provided Autodesk Licensing Hotfixes provided via the Autodesk Desktop Application.

To correct this problem, please run the Autodesk Desktop App (found via the Windows Start Menu), log into the app with your Autodesk User ID, and then run all available Autodesk CAD App Service Packs, patches and licensing hotfixes.

If your Autodesk Desktop App is loading, but failing to display any options and appearing completely blank, then you may need to uninstall the Autodesk Desktop App, and then reinstall the App using the below link;


If the problems persist, work through the troubleshooting steps listed on the below Autodesk KB article;


However as these steps are extensive, you're more than welcome to log a support ticket with the A2K Technologies support team for further assistance on this issue.



Phone: 1800 223 562

Autodesk Named-User Licensing

by Karl Hosking 19th Aug 2020

Over the past few years, Autodesk has been transitioning from legacy licensing methods into Named-User licensing. This new Named-User license method is replacing both Standalone licensing (the license that activates to a desktop) and Multi-User license (the license that operates from a license server running LMTools and an Autodesk Network License File). If it's all a little too hard or confusing, not to worry, as an A2K Technologies Subscriber we'll get you sorted, but it's worth knowing the details below. Put simply, once transitioned, CAD users will now be greeted by an Autodesk Sign In screen to access their CAD software and services.

What does this mean for end users?

Importantly, transitioning users into Named-User Licensing means no more serial numbers. No more activation codes. No more [-15.570] errors (I don't even...), and no more license files(!). Many end-users won't need to worry about this process as they're already using an Autodesk ID to access their Autodesk applications after transitioning over the past few years. Named-User licensing may however be a new experience for users who traditionally have been licensed via a Multi-User Network License. As an end user, an A2K Technologies Customer Success manager and Licensing Consultant, along with this document, will be assisting your CAD managers and IT Administrators with the transition.

What does this mean for CAD Managers?

  1. Become familiar with the Autodesk Manage Portal
  2. Understanding and assigning different management roles, such as Contract Manager, Primary Administrator, Secondary Administrator and SSO Administrator.

  3. Creating and managing Autodesk ID for all of your users
  4. Assigning Autodesk subscriptions to each user (such as AutoCAD LT, Product Design Suite, Collections, etc)

  5. Working with your IT Administrator to configure each CAD workstation for use with Named-User access.

  6. Using the Autodesk Desktop Application (with your users signed in) to check that all CAD Application service packs and hotfixes have been applied.

And I can not stress point 6 enough. Here's a screenshot for what you're looking for and an example of a critical patch;

As unfortunate as it is, from time to time we do see show-stopping bugs preventing Autodesk apps from starting that can be simply resolved by checking the Autodesk Desktop App for any pending updates and installing them. Updates may also be accessed as a download via the Autodesk Manage Portal, under the Product Updates menu - use the search to find the patch that you're looking for;

What does this mean for IT Administrators?

Many Admins will already be familiar with the requirements, especially those who have managed any Autodesk LT products, or previous licenses that have already been switched to term based. However, those IT Administrators who have 100% Multi-network licensed product may be be new to this, so some advice below.

Firstly, plan for a 30 day transition hand-in-hand with your CAD managers,

Week 1:

Named User accounts created for all of your CAD users. Autodesk apps assigned to each user (working with your CAD Manager to find out which users access what apps).

Week 2:

Named-User configuration of all CAD workstations. This is where you may need to reach out to A2K Technologies Support for any errors that get stuck in a cyclic loop, which unfortunately are a little common with the older CAD apps - screenshots of errors are more than welcome when creating a support ticket.

Week 3:

Getting feedback from each user, making sure they're up and running with the Autodesk Apps that they need.

Final Week:

Disarm LMTools, turn off and and remove the Autodesk License Service, and delete the Autodesk multi-user license file.

It's worth mentioning however that LMTools may still be required for other vendor software (such as Ideate), so you won't necessarily uninstall LMTools - but I do suggest deleting the ADSK Vendor File "adskflex.exe".

Another important item worth understanding - put simply, there are two ways to update a CAD Workstation from Multi-User to Named-User that depend on what version of CAD is installed (and also a third point that touches on legacy software);

1. For Software Versions 2017, 2018 and 2019, Autodesk software is configured via an LGS.dat (but consider this info legacy, only relevant for another 2 years).

How to by-pass LGS (Lets Get Started) screen or automate pre-setup license type when running Autodesk products

2. For Software Versions 2020 and upwards, you'll need to become familiar with the Autodesk Licensing Installer Tool Helper, more info here;

Autodesk Licensing Installer Helper tool guide

3. Speak with your users and CAD managers if they're running anything older than 2018, and check that they have an Autodesk Support Case with approval for running anything beyond 4 years from the current release. Understand the fine print here;

Accessing and downloading legacy Autodesk products - Commercial License Only

The Autodesk Desktop App is an important app that you'll need to know of. In some situations, you may actually want to remove the Autodesk Desktop App to prevent users from updating their Autodesk products out-of-step with all other users. The app can also be downloaded and installed by itself too, follow the link below for the install media;

Autodesk Desktop App Install Media

Without the Desktop App, Product Updates may still be downloaded from the Autodesk Manage Portal manually;

And finally, it's worth mentioning that Single Sign On (SSO) is available to purchase via Autodesk Premium Subscription for accounts with 50+ subscriptions. For more information on Autodesk Premium Subscription, please get in touch with your Reseller account manager. More info on Autodesk Premium Subscription here;

Autodesk Premium Plan

Any other general technical tips that I should be aware of?

Yes, a few worth highlighting;

 - Named-Users can install their subscribed software on three computers. Typically a workstation, a laptop and a home computer.

 - Do not share your Autodesk ID password with anyone. Not your IT Administrator, or CAD Manager, Reseller support or Autodesk. A password reset can be arranged via the Autodesk Named-User login if needed. Two Step Verified security can also be turned on or off via the website;

 - The Autodesk Desktop App is installed by default with the majority of Autodesk Software. Use the App to test signing in users with their Autodesk ID and to keep software patched and up-to date. Under some circumstances, the App may be removed by your IT Administrator to improve patch continuity across all users with their own distribution method.

 - Users should only be prompted to log in with an Autodesk ID during the first time they access the software after a new install, unless already logged in via the Autodesk Desktop App. Signing into one app will sign users into all of them on that Desktop.

 - If needing to go mobile, check that the Autodesk ID is signed in, then disconnect the CAD workstation from the internet and continue to use Autodesk Apps for 30 days. After 30 days, the user will be prompted to connect to the internet and re-enter Autodesk ID credentials. Always test this offline work mode feature whilst in the office before leaving.

 - Autodesk Software Compliance is still a thing, so take this transition time to use the Autodesk Uninstall Tool (found in the CAD workstation start menu) to uninstall of legacy Autodesk software, and also take the time to remove any legacy software installation media too. The Autodesk Uninstall Tool will work with Autodesk software up until version 2014, but for anything older will need to be manually uninstalled. If users need continued access of Autodesk Legacy Software (anything beyond 4 years of current release) then make sure you've officially requested this and have an Autodesk Case referral number.

 - Windows 7 is no longer supported by Autodesk. Please be sure that your CAD workstations have been transitioned to Windows 10 (you can check the build version via the "WinVer" app found in the Windows Start Menu). Legacy software that requires Windows 7 is typically virtualised if it's still needed. 

 - Named-User licenses are supported within a VDI environment, but be aware that Autodesk caches the user login data under the Windows %appdata% folder and that it's tied to both MAC address and SID, meaning if the session is flushed after the user logs out, and the hardware reset upon the user logging back in, the user will need to also log in again with their Autodesk ID for each new session.

In Summation;

Autodesk Named-User accounts are here to stay, and Multi-User licensing is on the way out, soon to be discontinued. These changes can be a lot to take onboard and process, so if you have any questions or concerns then please do get in contact with the A2K Technologies Customer Success team, who if needed can arrange a support representative to assist with your technical enquiry.



Phone: 1800 223 562

Autodesk Press Release and References

Transition To Named User (press release)

Transition To Named User (Technical Steps)

Retired Autodesk Products

Autodesk Named-User Management

Uninstall LMTools

Autodesk Licensing Helper Tool Guide

Desktop Configuration For Named User License

Recently, we've had an increase of questions asking about how to work from home with their Autodesk software. And as either an Autodesk Software user or an IT Administrator, if you're keen to know your options then please read on.

Note that this article is discussing licensing and installation aspects of Autodesk software, but not the actual remote workflows that may be needed with your CAD applications when working from home.

30 Day Trial Mode

Firstly, understand that anyone can obtain the current version of Autodesk Software (at time of writing, we're transitioning from release 2020 to release 2021 over the coming weeks) and run the software in trial mode for 30 days. There may be reasons as to why the trial may not work immediately, but generally speaking, running the software in "Serial Number" / "Standalone" mode will grant that active user 30 days to use the software before locking them out. More on this later... but for now, most users should be able to download the software and use it in trial mode.

Downloading your software;

There are three common ways to download Autodesk software to your home computer;

Autodesk Manage Portal

And of particular interest, when using the Autodesk Manage Portal to download your software, use the "Browser Download" method that's detailed here;

Autodesk Virtual Agent

The Autodesk Virtual Agent is a chat bot that can be used to download Autodesk software (limited to current version for anonymous users) and also for its activation (more on activation below, it's only required in some situations).

Autodesk Desktop App

The Autodesk Desktop App can be downloaded, installed, and then once a user has logged in with their Autodesk ID, they'll be able to access the installer for any Single-User licenses that have been assigned to them. The Autodesk Desktop App may already be installed on your computer if you've installed any Autodesk software previously over the past 5 or so years - you'll find the shortcut for it within the Windows Start Menu.

Patching your software;

The Autodesk Desktop App will be installed with any Autodesk software installation. The shortcut for the app is found within the Windows Start Menu, and will run in the Windows System Tray as a little blue "A" icon. Load up the Autodesk Desktop App, log in with your Autodesk ID, and then the app will scan and detect any installed Autodesk products and provides for patching of each install. Of importance the App will also provide Licensing Hot-fixes independent of your CAD service packs and CAD hot-fixes, and it's very important to install any licensing hot-fixes recommended by the Desktop App as a priority.

Alternatively, you can download individual Autodesk App patches via the Autodesk Manage Portal. The list of available patches may be extensive however, so use the search bar to help find what you're looking for.

Licensing your installed software for home use;

Single-User (Term Based) Licensing

For those of us who are using an Autodesk Single User license, this method is by far the easiest. Simply download the software, install it (be it a laptop or desktop, but Autodesk do state a limit of 3 devices) and log in with your Autodesk ID to use it. If the software fails to log-in, run through these checks;

 - Are you using the correct email address that's associated with your Autodesk ID?

- Check the Autodesk Desktop App doesn't have any pending Service Packs or Licensing Hot-Fixes awaiting install.

 - Check that the products you're trying to open are listed either in the Autodesk Desktop App, or the Autodesk Manage Portal. If either of these are looking relatively empty, cross check your email address and your assigned software with your Software Coordinator.

Multi-User Network (Term Based or Maintenance) Licensing

Borrowing a Network License

Multi-User Licensing Users may open up their CAD application, clicking Help/About, and then product information where they'll see an option to borrow a license for a set period of time (6 months is the maximum default). CAD administrators may wish to either limit the borrowing of licenses to certain users, or by the maximum time which a license can be borrowed. To control the Borrowing, the CAD Administrator will need to create an Options File on the License Server. The guide below details how to create an options file;

Virtual Private Network

Speak with your Company IT Administrator about setting up a VPN between your home device and your office network. Once the VPN is setup and active, so long as your home computer can see/ping the Autodesk License Server in your office, you can then go about installing the Autodesk Software and upon first start up, select the "Multi-User" option, enter in your company servers name, and the software should start up as expected. If however, you encounter errors please be sure to first check the VPN is setup correctly with your IT Administrator. Following that, ask them to reach out to A2K Support for help, as we'll need to check;

 - The client side error message, take a screenshot of it.

 - The LMTools log file, Status Enquiry and Options file

 - Network Latency (how long it takes your home computer to communicate with the office license server).

And as always with a Network License, remember that once the user requirement exceeds the license pool, users will be rejected from obtaining a network license.

Home User Serial Number

Your software coordinator can log into the Autodesk Manage Portal and generate a "Home Use Serial Number" which can be issued to any user who needs to install and run Autodesk products from their home computer, yet is unable to run a VPN. There are limitations to Home Use Serial Numbers, such as;

 - The Software Coordinator may only issue the same amount of licenses as per the maximum licenses held within the license pool of their active Autodesk contract, on a per product basis. So if you have a 10 seat Multi-user network license of AutoCAD, then a Home User serial number may be generated for that product, and then issued to a maximum of 10 users for install and activation on their home devices.

 - The installation must be activated (and for troubleshooting on this, please see below).

 - The license will expire, typically 12 months after activation. It can be renewed, however, often users prefer to install and re-activate their newer version of Autodesk software, and uninstall last years version.

Legacy Standalone Licensing (Maintenance)

Install your software and activate your install using the same serial number that's been used on your work computer. If activation fails, use the Autodesk AVA website to assist with manually activating your product. It's important to understand however, that Autodesk will only allow home use activation on active maintenance contracts. If you're maintenance contract has since expired, Autodesk will not activate your product for use at home.

Activation Troubleshooting;

If using either a Home Use serial number, or your Maintenance perpetual serial number, the software should automatically activate via the internet. If that fails, try using the Autodesk AVA website to generate your activation code manually.

Activate your product directly using the AVA website:

If you're still continuing to have activation complications, then please reach out to A2K Support for further assistance, noting that we'll require;

 - Name of Installed Product

 - Product Serial Number (the issued home use serial, or your maintenance serial number)

 - Product Key

 - The Request Code generated when the software attempts to activate (you can use the mouse cursor to select this code, and copy/paste it)

Email those details through so that we can work with Autodesk to manually generate an "Activation Code" for use with your home install. However, keep in mind that you should be able to use the software in 30 trial mode whilst awaiting your Activation Code.

Project data, saving and sharing files, accessing work network drives, etc.

The aim of this particular document is to cover frequently asked questions on Autodesk Licensing and software install during Work From Home situations, but for tips and tricks regarding remote workflow related questions, please log a new support ticket via the A2K Support Portal so that a product specialist can review and discuss your workflow questions. Use the below link to log a support ticket with the A2K Technologies support desk;


Autodesk Media Release;

Autodesk have release the below media release which also contains a few official handy links that you may refer to if needed, regarding Home Use Licensing;

BIM 360 Access Issues 

By David Gerber - Support - A2K Technologies

We have seen an influx of BIM360 tickets this week after the expiry of the Extended Access Program by Autodesk which gave users access to BIM360 Trials until June 30, 2020.

We have found some common reasons for the loss of access, please see the below reasons and the appropriate measures to take to resolve them:

  1. BIM360 Trial not extended

    1. If you decided that you wish to not continue using BIM360, you would have needed to download all of your projects from the Hub before the expiry date. If you find yourself in a situation where you did not do so, Autodesk gives a 30 day grace period. Only the Admin of the Hub will be able to access the data for downloading.

      1. Additionally, when you download your data from the BIM 360 Design trial hub/site, you will be downloading the Revit model(s) that were uploaded to the BIM 360 site. All non-model metadata like markups, issues, user permissions, audit trail, contents of packages in Design Collaboration module and more, cannot be downloaded.

      2. *Note: provided you've opened the latest cache models before the trial expired, you may have local cache models stored on your computer which you can use.
        • Cache folder located here: C:\Users\%USERNAME%\AppData\Local\Autodesk\Revit\<Autodesk Revit Version>\CollaborationCache 
        • The easiest way to find the model may be to look at the time stamp and trace back when you last opened the model. If you are comfortable with using Journal files, the GUID and File Path can be found through there as well.

    2. If you wait over 120 days after expiry, you will lose your data. The only way around it is to pay for a license and get access to the hub, or be proactive and download the files before the expiry date/purchase and merge before the expiry.
      1. More info on what can/can't be done after expiry here: 

  2. BIM360 License purchased

    1. If you purchased a license, you should've gone through the process of filling out a form with your account manager to merge your trial into a full license.

      1. If this process wasn't done for whatever reason, please reach out to us at - - so that we can lodge it with Autodesk to merge for you ASAP.

      2. Please send through the following with your email:
        1. BIM360 Account Admin Name and Email
        2. Site ID - how to find your Site ID: 
        3. Name of the Hub

    2. Depending on the timing of when you purchased the license, it may also be in the merging process. If this is the case, at the moment there is a 4+ hour turn-around time for the merger. 

  3. BIM360 License purchased and merged with trial

    1. If everything was organized prior and has gone through before the expiry date of the trial, we have also noticed that users have lost access to BIM360.
      1. Please check license allocation to users. We have seen numerous clients have actually been unassigned even if they were assigned previously.
        1. This is especially the case if it went from trial to full license recently.
        2. How to assign users access to products: 

    2. This is not limited to those who recently bought BIM360 license, we have seen licenses purchased as far back as March 2020 have users unassigned. 

If it isn't one of the above 3 common issues, please reach out to us at support - - and provide as much detail as possible so that we can get the appropriate person to help you in a timely fashion.

Please include:
  1. BIM360 Account Admin Name and Email
  2. Site ID - how to find your Site ID: 
  3. Name of the Hub
  4. Screenshots if they help explain your situation better
  5. When the issue emerged
  6. Name and emails of affected users

We understand the frustration that may arise with this scenario as you may have multiple users unable to work, so please work with us and provide as much information as possible so we don't need to keep going back and forth between yourself and Autodesk to complete the puzzle. The more information you give us, the easier it is for us to solve the problem for you and get you back up and running.

We appreciate your patience!

Windows v2004 Causing Autodesk Product Issues

Support - A2K Technologies

We have started to see a few clients moving onto Version 2004 of Windows in the last few weeks with various issues. 

  • CAD not launching;
  • Revit performance deterioration;
  • Products not installing with various failure warnings;
  • Products crashing on start-up with error pop-ups.

At the moment, we can see the issue lies in the C++ Libraries getting corrupted during the Windows Update.

If it's a FRESH INSTALL, we recommend the following steps:

  1. Uninstall C++ Libraries (C++ libraries will install on their own with the software installation);
  2. Clean uninstall the software in question;
  3. Run MSFixIt to clean up any registries and straggling files (sometimes there are multiple instances, so run MSFixIt until they are all clear);
  4. Reboot your computer;
  5. Reinstall the software using the Browser Method.

If it's a product that was ALREADY INSTALLED and started to act up, we recommend the following steps:

  1. Repair C++ Libraries;
  2. If it's still not working, un/reinstall C++ libraries;
  3. If still not working, Repair the product through Control Panel;
  4. If still not working, run a Reinstall through the Control Panel.