@Enru Hello,
Normally devices could roam to a strong WiFi signal by itself after it connects to RE and remember the wifi credentials:
You could try to set up a separate SSID for RE which is different from router's SSID, and later forget router's Wi-Fi on your devices like laptops or phones:
( change Wireless settings via Tether APP) https://www.tp-link.com/support/faq/1373/
Remove WiFi profile on computer and see if that helps:
https://www.tp-link.com/support/faq/918/
Forget WiFi on the photo: Go to Settings-> WiFi on your phone, Tap (or Long press the router's WiFi name ->Forget / Delete the network