Activation failed

In the case activation of ESET Internet Security was not successful, the most-common possible scenarios are:

License key already in use

Invalid License key. Product activation form error

Additional information necessary for activation is missing or invalid

Communication with the activation database failed. Please try to activate again in 15 minutes

No or disabled connection to ESET activation servers, for more information see Ports and addresses required to use your ESET product with a third-party firewall

Make sure you have entered the proper License key and attempt to activate again.

If you are unable to activate, please read Resolve ACT or ECP errors during activation.