The home automation system relies on your home Wifi/Internet network to be usable from a PC/smartphone. If from these devices you are no longer able to find the home automation system as before, the problem may be linked to a particular network configuration, which may have been replaced with the purchase of a new router.
The board that connects to the network is called Vesta, it is located inside your electrical panel and is connected by cable to your router. As a first step, you can check that all cables that were connected to the previous router are now connected in the same position to the new one.
Then, check if with the UNAMobile app (for Apple e Android) you can reach the home automation system, doing a test both by connecting to the WiFi of the new router, and with an external connection (e.g. mobile data from your mobile phone).
If you still do not succeed, contact our Technical Support at the contacts you find on this page. We recommend that you already prepare a computer connected to the Internet, so that we can provide you with remote assistance.