@terziyski No I actually don't have their device. But I solved it. Thank you for helping!

@terziyski hello, I know my gateaway IP is 192.168.1.254, but as I said, it's some AirOS login page. And none of the passwords I found work.

(sorry for the wrong model in category, but I can't find mine) Hello, I restarted router model TL-WR741ND Ver: 4.20. So there is no password on wifi right now. I was trying to set up the password...