We are excited to announce that we have launched our new Hive Community! HiveNation will remain as an archive, but all new posts, discussions, and articles will be created on Hive Community. You can visit our new community at thehivecommunity.aerohive.com
We discontinued the AP340 in May 2013 (see http://www.aerohive.com/support/end-of-life-products/) so this may be new-to-you but is probably already provisioned and thus is looking for connectivity to someone else's management system not yours. Can you console into the box and look at it's configuration, specifically the output from SHOW CAPWAP CLIENT?