To go online

To go online
 

Are the sentences below correct (I want to go online)? Are there any other expressions we could use?

• Quiero conectarme a Internet.

• Quiero entrar en Internet. / Quiero entrar en línea. / Quiero entrar online.

• Quiero ponerme en Internet. / Quiero ponerme en línea. / Quiero ponerme online.

• Quiero meterme en Internet. / Quiero meterme en línea. / Quiero meterme online.

Many thanks in advance.

The first one is the only one correct to me, and it can be both formal and informal.

The rest -except the instances with "ponerme" which only work with the verb "navegar"- are informal ones.

I wouldn't use "en línea"/"online" with "entrar" or "meterse".

And I'd prefer "quiero entrar a Internet". :)