When launching the vRanger GUI the MyInventory screen never loads. All Virtual Centers and ESX hosts are on line and can be pinged by FQDN and IP. Restarting services does not resolve the issue, neither does editing the database dbo.nventorySourceConnection and setting the IsDeleted to True for each Inventory item.
Drop the vRangerPro database and use the vRanger Database Utility to create a fresh database.