license error

Hi,

Use windows folder options > unhide known extensions, to make sure the file is named altair_lic.dat and not altair_lic.dat.dat,

You need to confirm if the Ethernet address in the license file is the correct one and matches the one in your machine.

When you open the license file in a text editor you will see an Ethernet address there in a line that says 'ETHERNET =

The Ethernet ID is the ID of your machine which is exactly 12 hexadecimal numbers. For example D4WRF478F398

Run ipconfig/all in command window and check for physical address under Ethernet adapter local area connection:

The listed physical address under Ethernet adapter local area connection should be used to generate the license file, That means if the address provided as above does not match the one in the license file, please request for the license file again with the correct Ethernet ID.

You can check your computer’s Ethernet address, by using the almutil -hostid application from the Start > Altair > Tools > Admin tools Menu and compare it with the result in the command window,

Alternatively run getmac in command window to find out available Ethernet addresses to cross check as well,

The same account is fine.