This is the 16431st most frequent Russian word.
роутером
Router.
Here, 'роутер' (router) is used as the direct object in the sentence, indicating the device used for setting up the network.
Я настроил сеть с новым роутером.
I set up the network with a new router.
In this context, 'роутер' is the subject of the sentence, referring to the device that enables fast internet.
Для быстрого интернета используется мощный роутер.
A powerful router is used for fast internet.
In this sentence, 'роутер' is used as the object of the verb 'заменили' (replaced), indicating the item changed in an action.