2
Votes"Retrieve settings from your old router"
"Retrieve settings from your old router"
I think it's a existing feature for some devices, since I found it on official website.
https://www.tp-link.com/baltic/support/faq/3773/
I don't know why that's not on every model. For example all Keenetic models has this function. Some ISP's doesn't provide your PPPOE password to restrict you from changing your router, like my case.