Some OS upgrades for WG firewalls do not follow the old standard for download the executable and then put the IP address in to update the firewall. Some of these upgrades extract the updated OS to your computer and then you need to go to the firewall and follow the update OS prompts and browse to the update file on your PC. When you run it it puts
the update here on your PC:
C:Program FilesCommon FilesWatchGuardresourcesFirewareXTM11.4.1XTM5
It will vary depending on your device and the version however just knowing to look in this general area will help. As I have done this a few times to update firewall and initially was wondering where the update files were going to.
Hope it saves you some time.