I'd recommend a direct ethernet wired connection to any server. And especially one that verifies transactions like a full node if that is your intention. It's not just speed that benefits, but security. If you go the wifi route, follow the important points that @aljaz mentioned.
Yes, I run a node now through Ethernet. I intend to keep my server completely separate from my node. I don't like the idea of using my home server for my node. Since the server is going to be at the other end of my house from my node, I want an Ethernet connection there also. Improving wifi is a second, but equally important goal.
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