In some circumstances, Google's Chromecast can cause temporary malfunctions to the WiFi network it is connected to. The problem has been confirmed by Google and several router manufacturers – the devices connected to the Internet that handle the WiFi signal – are working to fix it. Chromecast is one of Google's most successful accessories in recent years: connected to the TV, it is used to watch YouTube videos and other streaming content without having to resort to cables or other more complicated systems. The malfunctions also concern Google Home, the device for the home (not for sale in Italy) which is used to give commands to the Google assistant by voice.
The problem with WiFi affects routers from numerous brands, including those made by ASUS, Linksys, Netgear, TP-Link, and Synology. The malfunction varies depending on the model, but basically it has similar characteristics: suddenly the WiFi network stops working, sometimes for a few minutes, and then resumes normally.
A TP-Link engineer has posted an explanation of what happens when the wireless connection stops working. Simplifying a lot, Chromecast sends a large amount of information and requests to the router as soon as it activates. The amount of requests is such that many routers or the network to which they are connected are in difficulty. In many cases, for security reasons, the devices pause, making the connection unusable even to smartphones and computers connected to the network at that time.
For some time there have been cyclically reports of suspicious behavior of WiFi networks in the presence of a Chromecast or Google Home, but so far there had been no confirmations or in-depth analyzes. Now Google has admitted the problem and has announced that it is working to find a solution. Upgrading a router is not easy, because in many cases it requires some experience and computer knowledge. An update for Chromecast should be easier, as the device updates itself.
