Internet problems for Virgin Media customers

I thought it was live TV broadcasting that requires a license?

if you watch any "live" video on any platform, then that requires a TV license.

this includes BBC iPlayer, but also YouTube for "live" broadcasts.

from the FAQ https://www.tvlicensing.co.uk/check-if-you-need-one/topics/watching-live-online-and-on-mobile

Live TV means any programme you watch or record as it’s being shown on any channel, TV service or streaming service. It’s not just live events like football, cricket, news and music. It also covers soaps, series, documentaries and even movies.

An online TV service is any streaming or smart TV service, website or app that lets you watch TV programmes over the internet. This includes services like Channel 4, Sky Go, Now, BBC iPlayer, Amazon Prime Video, YouTube, Netflix, Freely and ITVX

so unless you firmly are not watching any live video at all at any point in the year... you need a TV license.

it does not matter if the live broadcast you are watching is not even broadcast on UK television channels, if it's live and you're viewing it you will need a license.