Upgraded on Autodesk and now can't open 2017 AutoCad LT.

[Anonymous]

I downloaded all high severity updates and then Autocad lt 2017 wouldn't open. So I then proceeded to upgrade to 2019 Autocad LT and now it wont open this as well. It did ask to migrate info from 2017 to 2019 and I thought this worked. I cannot find a serial number on any old emails as I run it through a yearly subscription. I was on hold for 30 min but I can't wait. Anyone have any ideas? I am on a Mac as well. mac0s Sierra 

[maxim_k]

Welcome to Autodesk Forums!

Hi Tricia,

Can you elaborate what does it mean: "It won't open"?
Does it won't open because you don't know serial number and cannot activate AutoCAD? If so, you can verify your AutoCAD serial on your Autodesk account management page:
https://manage.autodesk.com/cep/#products-services/all
And of course you need to have an active AutoCAD subscription.

[Anonymous]

I recently upgraded many of the hot fixes and updates for 2017 AutoCAD lt and when I went to open AutoCAD lt 2017 nothing comes up. The circle that shows it’s loading comes up for a minute and then no opening of the program so I thought maybe I needed to upgrade to a newer version 2019 AutoCAD lt which I did and it migrated information for 2017 into the 2019 software. then when I went to open 2019 software it would not open. I did right click and get to a screen where I could select single user and enter in a serial number but then when I went back to my account to find the serial number for my online subscription for AutoCAD LT, I could not find the serial number. I’ve had no issues for 2 or so years with my yearly subscription online and now have no way to use even though I’ve paid for it so I’m running the trial version of 2019 until I figure it out.

[maxim_k]

If you are able to run 2019 version as trial and you have active subscription, you can create Support request from your Autodesk account page and you can ask for a help here:
https://forums.autodesk.com/t5/installation-licensing/bd-p/24