License Error: The License Manager is Not Functioning or is Improperly Installed (FLEXnet Error)
You saw an error message similar to the following when attempting to launch AutoCAD or F/X CAD: License Error: The License manager is not functioning or is improperly installed. AutoCAD will shut down now.
If you’re running F/X CAD 2021 or newer, the error might read similar to the following: License Error: The License manager is not functioning or is improperly installed. AutoCAD will shut down now. ADLSDK_STATUS_AUTH_PENDING 20:Generic license checkout error
Cause & Solution
- AutoCAD or F/X CAD 2022 & newer
- AutoCAD or F/X CAD 2021
- AutoCAD or F/X CAD 2020 or older
AutoCAD or F/X CAD 2022 & newer
If you’re using the 2022 or 2023 year version, this error can result from:
- A compatibility issue between sleep mode and the Autodesk Desktop Licensing Service (AdskLicensing) 11.1 update, or
- Licensing services timing out on your computer
Here’s your solution:
Step 1 (2022 & newer): Install the most recent Autodesk Licensing Service update.
1B. Open Windows Explorer and navigate to the location C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing on your computer.
Right-click the file uninstall.exe and select Run as administrator from the menu that opens.
This step will uninstall the Licensing Service.
Skip this step if the AdskLicensing folder is empty.
1C. Disable any antivirus software or firewall temporarily.
1D. Open the software installation folder for your 2022 year version of CAD. This folder should be in the location C:\Autodesk by default.
1E. Locate the file AdskLicensing-installer.exe, which you downloaded in Step 1A above. This file will usually be in the location C:\Autodesk\ . \x86\Licensing cd C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing\Current\helper\
AdskLicensingInstHelper register -pk 001L1 -pv 2020.0.0.F -cf C:\Autodesk\AutoCAD_2020_English_win_64bit_dlm\Setup\AutoCADConfig.Pit -el US
Then press Enter.
The command listed above applies specifically to AutoCAD or F/X CAD 2020.
Open AutoCAD or F/X CAD again, and sign in if prompted.
Still getting the error? Move on to the next step.
Step 4. Verify that the Common AppData string value key exists and has the correct value in the system registry
4A. Press the Windows + R keys (Windows keyboard) or Command + R keys (Mac keyboard) keys to open the Run dialog box.
Type CMD in the text field, and click OK.
4B. Type set ProgramData at the command prompt and press Enter. Take note of the value – for example, C:\ProgramData.
4C. Press the Windows + R keys (Windows keyboard) or Command + R keys (Mac keyboard) keys to open the Run dialog box again.
Type regedit in the text field, and click OK.
4D. Check whether the key HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Shell Folders\Common AppData exists. (You can expand each key to check its contents by clicking the down-facing arrow to the left of its folder entry in the left pane.)
If this key does not exist, add the Common AppData string value key with the value from Step 6B above – for example, C:\ProgramData.
You may need your IT administrator’s help with this step.
4E. Check whether the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\explorer\Shell Folders\Common AppData exists. Note: This key has a similar, but not identical, path to the key listed above.
If you don’t see this key, add the Common AppData string value key with the value from Step 6B above – for example, C:\ProgramData – to this location as well.
You may also need your IT Administrator’s help with this step.
4F. Restart your computer, then open AutoCAD or F/X CAD.
Still getting an error? Move on to the next step.
Step 5: Uninstall Autodesk 2020 software (only if the Install Now method was used to install AutoCAD)
This step does not apply to F/X CAD users.
5A. If the Install Now method was used to install AutoCAD on your computer, uninstall all Autodesk 2020 products from your computer.
5B. Download the complete software installer from Autodesk accounts portal using the Browser Download method.
5C. Install AutoCAD using the Autodesk-recommended installation method.
5D. Open AutoCAD or F/X CAD.
Still getting an error? Move on to the next step.
Step 6: Temporarily disable third-party Web browser protection
6A. If you have a third-party Web browser protection application such as K9 Web Protection installed, disable or uninstall it temporarily.
You may need your IT Administrator’s help with this step.
6B. Restart your computer, then open F/X CAD or AutoCAD.
Still getting an error? At this point, your IT administrator may need to diagnose a deeper issue with your computer.
Cause
This error can have several possible causes, including:
- Skipping a step while activating F/X CAD
- A problem with the FLEXnet Licensing Service
- A corrupt LGS.data file
Solution
F/X CAD users: Have you purchased F/X CAD? Follow our steps to license (activate) F/X CAD, making sure to enter your Product Key and Serial Number. Activating will often resolve this issue. If you’re certain that you’ve activated your installation successfully and you’re still getting the error, complete the steps below.
Getting a Clock Error message?
You might see the following error message before seeing the licensing error: Clock Error: Check that your system clock is set to the current date and time before you try again.
Step 1: Ensure that the FlexNet Licensing Service is running.
1A. Open the Windows Start menu.
Type Run in the search field.
Select the Run option that appears at the top of the menu.
1B. Type services.msc in the Run dialog box, then click OK.
1C. The Services screen will open.
Scroll to the FlexNet Licensing 64 entry. Do you see Running in the Status column?
- Yes: Close the Services window and move on to Step 1D.
- No: Skip to Step 2: Check software restrictions.
1D. If the FlexNet Licensing 64 service is not running, right-click the word Manual in the Startup Type column to the right of this entry.
Select Properties from the menu that opens.
1E. In the Properties window, select the General tab and select the Automatic option from the Startup Type menu.
Click OK to save the change.
If necessary, you can start the FlexNet Licensing 64 service by right-clicking its blank entry in the Status column and selecting Start from the menu that opens. When the service is running, you’ll see Running in the Status column.
Can’t start the service? Your Windows profile may have insufficient permissions. If so, ask your IT administrator to grant you the proper permissions.
If you’re using AutoCAD 2018 and can’t start the service, install the Autodesk License Service (x64) — 5.1.5 Hotfix.
Step 2: Address software restrictions.
If the FlexNet Licensing 64 service is running but you still see the error when you open CAD, check to ensure that your CAD installation is able to access the domains listed in this Autodesk article.
Are you using a proxy server?
If you’re using a proxy server, open Internet Explorer and click the gear icon in the top right corner of the window.
Select Internet Options from the menu that opens.
In the Internet Options dialog box, select the Connections tab.
Click LAN Settings. In the dialog box that opens, select the option to Automatically detect settings and enter the Proxy IP-Address + Port in the Address field.
Click OK to save the change.
If your proxy requires authentication, enter your Proxy and Credentials in the Autodesk Desktop App.
Step 3: Enable Active X controls.
Still getting the error? Here’s what to do next.
3A. Open the Window Start menu and type Internet Options in the search box.
Select Internet Options from the top of the menu.
3B. In the Internet Properties dialog box, select the Security tab.
Click Custom level . . In the dialog box that opens, scroll down to the following two listings and select Enable for each one:
- Run ActiveX controls and plug-ins
- Script ActiveX control marked safe for scripting*
Click OK to save the change, then click OK in the Internet Properties dialog box to close it.
Step 4: Set folder permissions.
If you’re still getting the error at this point, your next step should be to grant Full Control permissions to all folders and registries listed in our article on user permissions required by AutoCAD or F/X CAD.
After setting the folder and registry permissions, run your AutoCAD or F/X CAD installation as an administrator by right-clicking its icon and selecting Run As Administrator from the menu that opens. If it runs properly and you don’t see the error, you’ve likely resolved the issue.
Step 5: Re-create the licensing data file.
5A. Close CAD (if it’s still open).
5B. Navigate to the folder C:\Program Files\Autodesk\AutoCAD 20xx (where 20xx is your year version of AutoCAD or F/X CAD (AutoCAD 2019 shown as an example.
Double-click the file acad.exe from that location.
Attempt to open CAD from the location where you normally open it. If it opens and you don’t see the error, you’ve resolved the issue.
Are you still seeing the error after launching CAD from the folder listed above? Move on to the next step.
5C. Close CAD again.
5D. Download the LGS.data file for your version of AutoCAD or F/X CAD using one of the following links.
5E. Double-click the downloaded file (it will be named LGS.data-2017, LGS.data-2018, or LGS.data-2019, depending on your version).
5F. The file will unzip and create a folder. Copy that folder into the following folder on your computer: C:\ProgramData\Autodesk\CLM\LGS\
5G. Open AutoCAD or F/X CAD. If you don’t see the error, you’ve resolved the issue.
Still getting the error? Move on to the next step.
5i. Start AutoCAD or F/X CAD. If you don’t an error message, you’ve solved the problem.
Still seeing the error? At this point, your office IT administrator will most likely need to diagnose the issue and possibly reinstall Windows on your computer.
Step 6: Restore the CLM folder.
Still getting the error? Navigate to the folder C:\ProgramData\Autodesk\. In that location, change the name of the folder CLM to CLMold.
Now open the Control Panel and select Programs and Features. Repair the x64 version of each Microsoft Visual C++ Redistributable version you see installed by selecting that version, clicking Change, and then clicking Repair in the dialog box that opens.
If you also see one or more versions of the Autodesk Licensing Service (x64) in the Programs and Features dialog box, select each of those entries and click Change as well.
In this same location, right-click each Autodesk License Service (x64) version you see and click Change.
Open AutoCAD or F/X CAD. Still getting the error? Move on to the next step.
Step 7: Reactivate the license.
To complete this step, you’ll need to be able to view hidden files and folders.
7A. Delete the files listed below from within each of the following folder locations:
- C:\Users\username*\AppData\Roaming\Autodesk\ADUT: Delete all files within this location.
- C:\ProgramData\FLEXnet:Delete all files in this location whose names start with adskflex.
- C:\Users\username*\AppData\Local\Autodesk\Web Services: Delete the file LoginState.xml from this location.
7B. Restart AutoCAD or F/X CAD.
7C. Navigate to each of the folder locations listed above. The files you deleted should have been re-created in those locations.
If the files you deleted were not re-created in these folder locations, here’s what to do:
Open the Windows Start menu and type Internet Options into the search box.
Select Internet Options from the top of the menu.
In the Internet Properties dialog box, select the Advanced tab. Scroll down to the Security section and ensure that the Use SSL 3.0 option is selected.
Click OK to save the change and close the dialog box.
Open your version of AutoCAD or F/X CAD, and try to activate it.
License Error When Launching AutoCAD or AutoCAD Based 2020 and 2021 Products
Solution:
1.) Go to C:\Program Files (x86)\Common Files\Autodesk Shared\AdskLicensing
2.) Right Click on the Folder AdskLicensing
3.) Select properties
4.) Go to the Security Tab
5.) Make sure everyone has full rights to this folder
6.) Select OK
7.) Right click on the uninstall.exe in the AdskLicensing folder
8.) Select “run as administrator” If this folder is empty you can move on to the next step
9.) Disable all Virus Scans and Firewalls (These should be turned back on after this fix is complete)
10.) Download and install the Autodesk Licensing Services Updates
11.) Download and install the latest single sign on component
12.) Launch software to test.
About the Author
Previous Article
How to add fonts to macOS for AutoCAD / AutoCAD LT
Please be aware that the macOS may not support compound TTF files, so while you may add it to your system, .
Next Article
Adding AutoCAD Plot Style Tables for use with AutoCAD LT for Mac running in macOS Catalina and earlier
Starting with Lion, Apple has hidden the Library folder under the current user name, presumably for securit.
What’s New in AutoCAD 2025
Apr 18
Related Content
Civil 3D: Matching blocks to Eccentric Structures
Need your AutoCAD blocks to line up with the out of the box Eccentric Structures? This post uncovers how to set up a strcture style to lineup with the 3D parametric part.
Civil 3D: Matching blocks to Concentric Structures
Want your AutoCAD blocks to line up with the out of the box Concentric Structures? This post reveals how to set up a Structure style to lineup with the 3D parametric part.
AutoCAD: Error “Unable to Download” When Creating a Deployment
Issue: After creating a simple deployment for AutoCAD 2024, you download the 15 MB configuration .exe file and start to extract the deployment.
53:53
Explore AutoCAD’s evolution and top features
Ryan Wunderlich takes you through the evolution of AutoCAD and the most popular features and tools in the platform. Highlights included eTransmit’s Windows 11 compatibility and AutoCAD 2024 features
AutoCAD LT 2025 Brochure
Learn the features and benefits of Autodesk AutoCAD LT 2025 for creating and editing 2D drawings in multiple disciplines.
32:59
AutoCAD Tricks & Treats!
A special Spooktacular webcast filled with AutoCAD tips and Halloween fun!
1:00:34
What’s New in AutoCAD 2024
Take a tour of the new and enhanced features in Autodesk AutoCAD 2024. New features: • Activity Insights • Smart Blocks: Placement • Smart Blocks: Replacement Enhancements: • Markup Assist • Trace
OLE Image Shifts When Plotting
This is a known issue that can occur in some drawings and has no permanent solution, but there is a work-around.
Graphics Issues in AutoCAD-Based Products
You have slow behaviors when panning or zooming in AutoCAD-based 2022 and newer products. Viewports in a layout tab will lose linework when zooming or panning, requiring regens to make visible again.
Add Classic menubar pulldowns to ACA or MEP
You want the Classic Menubar in either AutoCAD Architecture or AutoCAD MEP and only see Express when you set MENUBAR = 1
AutoCAD Electrical Freezes on Splash Screen
Suggested solutions to AutoCAD Electrical Freezing on the Splash Screen
Working with outside DWG’s & File Clean Up
A workflow that should be avoided is opening an old project file and doing a “save-as” and deleting things that are not needed.
Text is hard to read in drawing DWFs in the Vault Thin Client
Producing text that is clear and sharp makes drawings easier to read in the Vault Thin Client.
AutoCAD 2023- ‘Import Failed’ error importing a Solidworks file
Cause: Missing AutoCAD 2023 updates. The error is fixed in AutoCAD 2023.1. Here’s what you need to know and do.
Unable to create a .dwf with DWG TrueView 2024
Unable to create a .dwf file with DWG TrueView 2024 through either the Job Processor or my manually launching the application.
Autodesk Vault for Inventor and AutoCAD Users
See the full course outline for Autodesk Vault for Inventor and AutoCAD Users, including topics covered, prerequisites, and our cancellation policy.
How to PURGE a Drawing and its XREFs using ETransmit
Sometimes when you PURGE your drawing it bloats right back up or gives errors again after you re-open it. This can happen due to the XREFs and a variable in AutoCAD.
AutoCAD Electrical Find and Replace Tool
You have a project with one or more components that you need to update the information for and manually making the edits is impractical.
Location of Blocks Used For Default Terminals in AutoCAD Electrical
You need to know where the block files that are used for Default Terminals Footprints are located.
AutoCAD and AutoCAD LT for Mac — Blocks are not updating across drawings
Your modified blocks are not updating from one drawing to another because the sharing of blocks in the cloud using the Blocks Sync Settings. Here’s what you need to know and do.
whoa there, pardner!
Your request has been blocked due to a network policy.
Try logging in or creating an account here to get back to browsing.
If you’re running a script or application, please register or sign in with your developer credentials here. Additionally make sure your User-Agent is not empty and is something unique and descriptive and try again. if you’re supplying an alternate User-Agent string, try changing back to default as that can sometimes result in a block.
You can read Reddit’s Terms of Service here.
if you think that we’ve incorrectly blocked you or you would like to discuss easier ways to get the data you want, please file a ticket here.
when contacting us, please include your ip address which is: 95.214.216.211 and reddit account
whoa there, pardner!
Your request has been blocked due to a network policy.
Try logging in or creating an account here to get back to browsing.
If you’re running a script or application, please register or sign in with your developer credentials here. Additionally make sure your User-Agent is not empty and is something unique and descriptive and try again. if you’re supplying an alternate User-Agent string, try changing back to default as that can sometimes result in a block.
You can read Reddit’s Terms of Service here.
if you think that we’ve incorrectly blocked you or you would like to discuss easier ways to get the data you want, please file a ticket here.
when contacting us, please include your ip address which is: 95.214.216.211 and reddit account