Perhaps, I have that same setup in my home lab for an unrelated project, and I recall configuring it in client mode, to associate to my home lab wifi SSID, and with a patch cable from the wired port into the Internet port of my Z1, the Z1 then sees that as it's viable Internet path (has no concept that there's essentially a wireless bridge link in that path). Perhaps it's a just a quick update to your TP-Link device if it supports a client mode. This is not the model I actually have, but the diagram is identical, and working fine. https://www.tp-link.com/us/faq-1323.html
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