Did you try admin for name and admin for password?
Hi. I bought a TL-WR742N modem from china and it's language is Chinese. When I go to 192.168.1.1 and enter admin as username it won't accept it (it says username is at least 6 characters and max 15).
Here is a picture from back of the modem :
So is there anyone can write down username and password here in text so I can copy it and login (I don't have Chinese keyboard and if I had I couldn't use it). And is there a way to change the language of panel to English?