Look for a in the upper-right corner of the screen.
Once you are logged in, there are two common ways to change the language depending on your specific firmware version: Many TP-Link routers feature a quick-access language menu: Change Language in TP-LINK TL-WR841N -RO- v11.x
Changing the language on your TP-Link TL-WR841N (v11.x) is a straightforward process that can be done through the router's web management interface. This is especially helpful if your router was purchased in a different region or if the interface is set to a language you don't understand. Look for a in the upper-right corner of the screen