The Swift MEAP Server is either not available or not accessible to accept the connection request from the device. This may be due to the device not being network enabled (Wi Fi off) or Mobile Data not enabled.
Additionally, the URL or Port numbers may be incorrect in the registration record. This needs to be checked by iEnterprises Support.
You may enable logging on the device from the Settings menu (iPad users only), and send an email with the log file to support@ienterprises.com after attempting another activation.