A: No. It requires an internet connection only once for online activation. After that, it works fully offline. Manual activation never requires internet on the embroidery PC.
A: No. Embroidery i2 is a perpetual license. One activation code works forever for that major version (e.g., v2.x). Major upgrades (e.g., v3.0) require a paid upgrade code.
A: If you purchased directly, contact support with your order name/email. Most vendors keep a record. If you bought a boxed version and lost the card, you are generally out of luck—so store codes in a password manager.