How to create a wifi? When others connect, an advertisement page promoted by themselves pops up. .

There are several ways to achieve this:

Hardware, that is, advertising router, is actually a router with software, the most famous Mai Waidi and so on.

Software, you can bring your own router or computer to install a software, which can be realized, as well as free Wiwiz and so on.

There is also an advertisement when connecting, and all browsers will pop up small advertisements after connecting.

Pure hands, forget to pick.