The License manager is not functioning or is improperly installed

[mmaoffshore]

Hello,

We are having the following issue when trying to run AutoCAD LT 2019 after installing.

After install it is prompting for the serial key, after entering this it will either reprompt for the key again

Or after doing this it will then show

I have followed every KB article I can find regarding this. And the error still occurs.
https://knowledge.autodesk.com/community/collection/the-license-manager-not-functioning-or-improperl...

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/AutoCA...

Every time I put in the serial number I do receive the "Thank you for registering email" So it appears to be reaching the licencing server ok. I have also tried this on two PCs, one freshly imaged and they both get this same problem.

[mdavis22569]

Have you gone through the main issue causing the License Manager error:

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/Contac...

https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/simplecontent/content/contact-yo...