Issue: Directly upgrading ATD 3.4.8 for versions earlier than ATD 3.4.8.190 to ATD 3.6.2 is not supported.

Solution:  If you upgrade a version of ATD earlier than ATD 3.4.8.190 to 3.6.2, you must upgrade your ATD appliance to 3.6.0 (either 3.6.0.17 or 3.6.0.25) before you upgrade to ATD 3.6.2.