There have been widespread network problems affecting the Internet across Northern Europe, added to that some public service broadcasters operate their own content delivery networks (away from the normal Internet).
bandwidth for these is often shared with commercial broadcasters in that country , but with an expectation that at times of high demand, listeners in the "home countries" are prioritised Internet radio is not regulated by the Communications Ministry which has some advantages but also means there is no actual guarantee of service levels. A friend in Scandinavia told me many users of public broadcasters online streams were having problems this week.
There is also great a deal of interference on the 2.4 GHz band allocated to wifi - bluetooth phones, microwave ovens and analogue audio/video senders also operate on the same frequency. In areas near the coast, some communications satellites used to provide telecoms and Internet services on board ship use nearby frequencies. Some modern equipment is designed to switch channels and/or reconnect to get round this problem - but this creates a lot of multiple connections to the same IP to the content delivery server.
The BBC has taken a hammering reputation-wise due to the bad acts of some of its staff, its boffins are constantly on the lookout for hackers / denial of service. There is also a Europe-wide economic depression which is causing some nations to question the need for a public service broadcaster (Greece put its main PSB off air for some months). Many of those who still earn a full time salary as broadcast engineers are old enough to be my Dad (I am in my early 40s) and still think in "analogue days" and the mindset of someone who "fought and died in 3 world wars"
They ask the "young people" to check up on "what is going on with these new fangled computers", but since the 1990s do not provide the training and development that used to be a big part of working for a public service broadcaster, and the cross training and goodwill between the national broadcaster, and national telecoms organisation disappeared after privatisation.
So a lot of this work actually gets contracted out to generic IT companies, where its more normal to think "lots of connections from the same IP, something is dodgy" (as often a misconfigured piece of equipment as hackers) and block at least some of them, especially if they are from a foreign country.