Question about Hombli Smart Swiss Socket 2+1

If you were able to connect from outside your house, it is because the wifi link and your internet provider were working. It is possible that this link is interrupted due to a change in your installation (soft or hard), or an update of your installation or a blockage of your Internet provider. You can reset your hombli plug and maybe it will work again. See the short instructions.

Yes, because once they are wired you can control them even from outside.