That depends a bit on which HiveManager platform you are using, but the following guide will help you manually connect the AP to the HiveManager and troubleshoot why it wouldn't connect in the first place:
HiveManager Classic (myhive.aerohive.com): https://thehivecommunity.aerohive.com/s/article/CAPWAP-HiveManager-Classic
HiveManager (formerly NG, cloud.aerohive.com):https://thehivecommunity.aerohive.com/s/article/CAPWAP-Guide-for-HiveManager-NG
