Hello,
If you are using Classic, this will help you reconnect that AP: https://thehivecommunity.aerohive.com/s/article/CAPWAP-HiveManager-Classic
If you are using HiveManager (formerly NG), this guide will help: https://thehivecommunity.aerohive.com/s/article/CAPWAP-Guide-for-HiveManager-NG
Once the AP reconnects, you'll wan to push a complete configuration to it.
