Sometimes the issue isn’t your IP address, but the installer itself. If you’re using a “US” version, try downloading the “Global” or “EU” version from the official site and activate it with your key.

Here’s a clear, helpful guide you can use or share: How to Activate Kaspersky Antivirus in a Different Region (Without Errors)

Kaspersky activation codes (license keys) are often region-specific. A key bought in India, for example, won’t work if you’re trying to activate it in the US or Europe. Trying to force it may give an error like “License key is not intended for this region.”