Happy to hear wget worked okay! I was hoping it would provide us additional errors for debugging but if completed the full download that works too. All you would need to get setup is to decompress the tar archive $ tar xzvf <filename> and the run $ humann_config --update database_folders nucleotide <path> to point HUMAnN to the folder by default. Alternatively after the database tar archive is decompressed you can point HUMAnN to the folder with each run by adding the option --nucleotide-database <path>.
Thank you,
Lauren