members.nationsbenefits.com/aetna Activate Card Flex Login : NationsOTC Activate Flex Card 2024 Open the  Aetna Member Portal and the page will be redirect you to the member portal for profile registration at members.nationsbenefits.com/aetna. Activation Methods: 1. … Continue reading members.nationsbenefits.com/aetna Activate Card Flex Login : NationsOTC Activate Flex Card 2024