Help with ista registration

[Joe@JCM]

Hi guys. Stuck with ista needing a license key to activate. Installed standalone v4. 3 3.2. Install went smoothly. Upon startup ista says reg has expired and needs a activation license key. Have tried several keys found on one of the threads but none work. Any help will be greatly appreciated. Need to get cas/dme allignement done urgently and wow from wurth doesn't give me the option to do it. Thanks in advance.