Hello, I used to login Tether app with the wifi password, but now, tether app and also the IP url 192.168.1.1 ask for an EMAIL (TP-LINK ID) and a password,  but I've never been registered with a Tp Link Id, then I registered with my email and my new password, but when I tried to login App Thether says that tp-link ID or password is incorrect, when I try to login in the IP link, there is a message saying "This device is not synced with the internet device" I think I've been cracked can someone help me? is there a standard email or password?

*admin, admin doens't work, admin is not a valid email.