@BennyCS Try this, if this not work you have extracted the fil wrong. or your computer is infected with somtething.. https://www.tp-link.com/en/support/download/er707-m2/v1/#Firmware

@Keith_Dixon That corect. Somthing similar to this but with tp-link equpment.

@marcel_ Yep, experiencing the same thing, No Ideas..

@Keith_Dixon Yes you can extend your wired network via mesh, connect meshed ap to a switch or what ever on rj45 direct in ap or to free port in poe adapter if you use EAP610-Outdoor you have poe...

@Keith_Dixon there is no problem and mesh then from meshed ap connect a wired network in the remote building. almost all ap have mesh except in wall series.

@DanBulmer I get the same erreor but I have not enabled this port, have you enabled this on wan?