Hi @Sandra, wget isn’t a fixed requirement for installing QIIME 2, just a convenience for downloading the yml environment file. If wget is giving you trouble, feel free to download any way that is appropriate for your workflow (e.g., download via your browser). Thanks!
PS - wget 1.9.1 is almost 15 years old, networking has changed a bit in the meantime, so I imagine that is why you experienced an issue there.