for online activation, which is verified automatically upon entry in the "Select License" dialog. Best Practices for License Management Hardware Changes revoke/return your license via the EPLAN Rehost tool

Sign in to the EPLAN Download Area using your customer number and serial number (or dongle number) to find your EID at the bottom of the page.

If you are moving to a new computer, you must perform a Complete Revoke of your current EID using the EPLAN Rehost tool before it can be used on new hardware. [Eplan P8 2.1 Validation Code - Google Groups

Official methods for obtaining or updating these codes include: EPLAN License Client : Start the EPLAN License Client , go to the "Online" tab, and click Request Validation Code Support Portal : You can log in to the EPLAN Download Area

: Validation codes are often hardware-bound. If you format your hard disk, change your computer name, or replace hardware components, you must Return the License before making changes to avoid losing the activation. Firewall Blocks