The Slovak MEP plugged in the cable. He knocked out the entire parliament for more than a week
Government MP Róbert Halák says he doesn’t even know why he plugged in the cable, he doesn’t normally deal with such things. But he was distracted by a lively discussion with his colleagues. The opposition suspects that the government deliberately interrupted parliamentary proceedings for such a long period of time. The internet, telephones and cash registers in the House cafeteria were down.
Source : https://www.seznamzpravy.cz/slovensky-poslanec-zapojil-kabel-na-vic-nez-tyden-vyradil-cely-parlament