blinkenlights on the router. To load the network during tests, we downloaded a YouTube video, let it play about halfway through to check the network was stable, then called the landline from a mobile, which stopped the network.
The result of this is that we downloaded the same YouTube video, and interrupted its download halfway with a call from a mobile, about 20 times. Moreover, because the network connection dropped out, it would re-establish with a different IP address each time, as provided by our ISP.
Oh, and what was this ultra-suspicious video? Bonnie Tyler’s Total Eclipse of the Heart, obviously.