from: https://s3.amazonaws.com/assets.mhint/downloads/48563/525756_Wireless300NRangeExtender_usermanual.pdf

Launch your Web browser and direct it to
http://manhattan.repeater. In case this fails, you can also
enter http://192.168.2.2. Log in with the user name
“admin” and password “1234.”

and if you need more than the link has check https://www.google.com/search?client=firefox-b-1-e&q=Ciao+wifi+range+extende one of those may answer your question