How can I switch from WiFi to mobile data without interrupting my current download in Chrome?
If you switch from Wifi to cell phone network your public IP changes and therefore seemless handover without interrupting a download is not yet possible.
There is a standard that is designed to allow such a seamless handover between e.g. Wifi and cell phone, it is called &quot;Mobile IP&quot;. Effectively it works a bit like a VPN. No matter what internet connection you use your public IP remains the same and changing between Wifi and cell phone network is covered by the Mobile IP system.
Unfortunately at the moment such Mobile IP providers are not yet well established.
Besides that even with the current situation a number of web servers should allow to handle download interruptions: Well configured web servers allow to resume downloads, hence if the download stops (because of a network switch) and you continue it, it skips the bytes already downloaded and continues where you stopped. Of course this also has to be supported by the downloading app.