Birne Helene October 4, 2021 5:35pm Facebook, Instagram, WhatsApp, and Oculus are down. Here’s what we know #ArsTechnica #Facebook #Instagram #WhatsApp #BGP #DNS #TooEarlyToRejoice Facebook, Instagram, WhatsApp, and Oculus are down. Here’s what we know [Updated] The root cause of the worldwide outage appears to be a flubbed BGP route update.