To help force the update, could you please assist by following these steps?
For these hubs, blocking NTP traffic during hub claim can allow the hub to connect to the hub firmware update server. This does require administrator access to your router and the ability to set Access Control Rules. The following steps outline how users with the necessary permissions and equipment access can proceed:
Locate the steps provided by your home network router manufacturer to access the Router Settings / Admin Interface.
In your Router settings, navigate to Access Control Rules and create a rule to disable UDP port 123 (NTP). (What is NTP Wiki). Please be sure to set only the source port as 123 and do not specify a destination port.
Factory reset the SmartThings/Aeotec Hub.
Go through the standard onboarding/hub claim process outlined in the hub documentation provided with the device.
If you still have trouble claiming, please collect hub logs as outlined in the Troubleshooting section below before rebooting.
Once the hub has successfully onboarded, remove the Access Control Rule created to block UDP Port 123. At this time, the hub should have updated its firmware to the latest supported version.
** If blocking the NTP port is not functional, another option some users have had success with, is blocking URLs for your specific region within the Access Control or Parental Controls. Here is a guide to find your NTP server for your specific region.