Thank you for your email. Assuming you are refering to concurrent ftp connections, there is indeed a limitation on this for our free users, though 2 should not be an issue (at least 5 should be permitted). This limitation to to ensure that we are not having users abuse our service.
Entering into our personal plans, you will be limited to 25 connections. The enterprise and business levels increase this to 50-150 connections depending on the level you go with. If you require more than this, or have other special circumstances, please email email@example.com.
Thanks, and look forward to hearing back from you,
DriveHQ Support Team