I can´t use Autocad 2018

[sebastianbasoco2249A]

I recently downloaded and installed Autocad 2018 as a student, but first it was downloaded as 32-bit and I had to re-download it as 64-bit with a tutorial in this forum, but after installing it as 64-bit, when I open it I get the following messages:

"Clock error

Check that the system clock has been set to the current date and time before trying again."

And when I close it, appears this one:

"The License Manager is not working or has not been installed correctly. AutoCAD will now close."

What can I do?

@leowarren34 

[pendean · Accepted solution]

Read and try the fixes in the first three posts that appear here
https://www.google.com/search?q=The+License+Manager+is+not+working+or+has+not+been+installed+correct...

[sebastianbasoco2249A]

thank u saved my life :))