I've tried several times to download Zorin 18 Pro. Each time it gets about half way there, and fails with the super-informative message above.
Computer is a Ryzen 7, 32BG RAM, 400+ GB SSD, ethernet connection with Starlink as the ISP. Speedtests show 200MBs download speed.
I was able to download it once, but moving it to a USB drive (to upgrade another computer first!) always fails with several USB drives. The USB drives were in a USB 3.2 socket on the computer, and the drives are Sandisk 3.2 with 128GB. The failure said "File too big to split".
I'm stuck with constant download failures, and with the one download that I think might be OK that fails to be able to be copied to a USB drive.
In the case of copying to USB, are you copying the ISO directly? Unless you set up the USB device with Ventoy, that probably means the drive is formatted as FAT16 or FAT32, which only allow files up to 2 GB or 4 GB. The solutions are:
Use Ventoy, which will let you just copy the ISO onto the drive (It creates a special partition where you can put ISOs without doing the usual stuff with Rufus or other tools.)
Use Rufus, which will "burn" the ISO on the drive. (ISOs contain many files; Rufus breaks the ISO down into the files inside and uses the ISO's information to ensure they go on where they belong.)
What you don't want to do is try formatting the drive as NTFS. Finally, there are other tools that can do the job, but Ventoy and Rufus are the only two I'd recommend.
The drives were in a socket on the computer, not in a hub. Later, I tried to download directly to the USB drive, thinking that would help. The response above about the limits of FAT32 are probably what was causing the copying (but not the download) problems.