Tplink travel router

my friend have a old TPlink travel router, forgot the model

maybe 720N..

He have a question, when he using in hotel, seem work for 2 device, but if he bring back to home use, it seem cannot connect over 2 device..

so it need to change the mode ? I not sure what is the default mode now.

seem he is using PCCW 100M

any idea? thanks

入番去隻router check番用咩mode囉,好似要改做router mode