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Facebook, Instagram and WhatsApp back online after massive outage — what we know

The Facebook and Facebook Messenger logos next to each other on a laptop screen and a smartphone screen.
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Update: Facebook, Instagram, WhatsApp, Messenger and Oculus VR are back online as of 6:10 p.m. ET.

The dust has settled after Facebook's six-plus-hours-long outage yesterday, October 4. As the social media giant's blue website went down, so did Instagram, WhatsApp, Messenger and Oculus VR. 

The company blames what it calls a "faulty configuration change." Essentially, the routers that chauffer people's web requests went offline. This had a rippling effect that brought down all facets of the entire company. A source told NBC News that employees couldn't even get into conference rooms as scanning ID cards all go through the same system. 

"Our engineering teams have learned that configuration changes on the backbone routers that coordinate network traffic between our data centers caused issues that interrupted this communication," said Santosh Janardhan, VP of infrastructure at Facebook via a blog post. "This disruption to network traffic had a cascading effect on the way our data centers communicate, bringing our services to a halt."

Facebook's extended hiatus not only prevented aunts and uncles from sharing baby photos, but, according to a report by the New York Times, businesses in Turkey couldn't sell items nor could non-profits in Columbia use WhatsApp to communicate with victims of gender-based violence. It goes to show how one company has become so significantly ingrained in every part of human life. That's why there have been calls from antitrust watchers to break up the company. 

Not only that, a Facebook whistleblower, Frances Haugen, is set to testify in front of Congress today about the way the company has hid its own internal data about its harms. Not only that, but she claims that Facebook consistently chose profit, even if it meant pushing more caustic content. 

Below we've left an accounting of our updates from October 4 intact for future reference.

Facebook, Instagram and WhatsApp outage: latest updates

  • At exactly 11.39 a.m. ET, Facebook, Instagram, WhatsApp, Messenger and Oculus VR went down. The outage is now closing in on the seven-hour mark.
  • Facebook has not given a reason for the outage, but has tweeted that its working on getting the issue resolved. 
  • According to investigative journalist Brian Krebs, when speaking to Doug Madory of Kentik, a network observability company, Facebook's DNS records were withdrawn from global routing tables. 
  • According to Philip Crowther of the Associated Press, it's "mayhem" over at Facebook. Internal systems aren't working. Employees are communicating via text. 
  • According to the New York Times, Facebook employees' badges aren't even working, meaning they can't enter the building. 
  • As of 6:10 p.m. ET, Facebook, Instagram and WhatsApp are back online. We're still waiting on an official statement from Facebook regarding the outage.

While the Twitter accounts for Facebook, Instagram and WhatsApp were slow to update users, all three services have since put out short statements. Each is a variation of acknowledging the issue and telling users that work is being done to address the issue. Still, there's official release on when this outage will end or why the outage has occurred. 

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Of course, a flurry of silly memes poking fun at Facebook and its suite of services have begun cropping up, with many lauding Twitter for being active throughout all of this. Twitter itself is now in on the joke. 

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Possible outage cause

As to why the outage has occurred, that has yet to be determined. But according to investigative journalist Brian Krebs, when speaking to Doug Madory of Kentik, a network observability company, Facebook's DNS records were withdrawn from global routing tables. 

DNS stands for Domain Name System. It's how the name of a website, such as, is translated into a raw IP address. When the DNS isn't working, web browsers can't find the website being called. 

It also seems that the BGP, or Border Gateway Protocol, routes have been pulled from the internet. Cloudflare describes BGP as the postal service for the internet. When someone wants to access data over the internet, it's BGP that tries to find the fastest route possible. Without BGP routes, there's no way for data to access Facebook, Instagram, WhatsApp, etc. Not only that, Facebook itself can't communicate within Facebook.

According to ArsTechnica, a user on Reddit who claims to be a Facebook employee, posits that network engineers may have been pushing a configuration change that accidentally locked them out. In this case, local data center technicians with local physical access to the routers are the only ones able to fix this. Per this Reddit user, the outage is not because of a malicious attack. 

"The ongoing outage of WhatsApp, Instagram and Facebook (including Facebook Messenger and Facebook Workplace) highlights that global outages are one of the major downsides of a centralized system," said Matthew Hodgson, CEO of Element, technical co-founder of the Matrix open standard, in a statement to Tom's Guide. Element is a decentralized collaboration and messaging platform and Matrix is an open source API for decentralized communication with end-to-end encryption. 

"Centralized apps mean that all the eggs are in one basket. When that basket breaks, all the eggs get smashed. We saw the same last week when Slack went down."

Hodgson argues that a decentralized system is ultimately more reliable as there's no single point of failure. 

Today's outage is the second longest in Facebook history. The longest still goes to the one that occurred on March 13, 2019, which lasted nearly 12 hours

Other trouble at Facebook

While there's no official statement as to why the outage has occurred, but for Facebook, this news comes at the heels of multiple damning reports. It's likely why #DeleteFacebook is also trending on Twitter.

Not only has the supposed DNS delisting thrown Facebook off the internet, it seems that internal systems across the company are down. According to Philip Crowther of the Associated Press, in speaking to a source at Facebook, "it's mayhem over here, all internal systems are down too." Employees are being forced to communicate via text message and Outlook email systems. Not only that, employee badges aren't even working, meaning many can't even enter the building. 

60 Minutes recently published a report in which a former Facebook employee, Frances Haugen, blew the whistle on internal practices at the company which encouraged the spread of anger-inducing content as a ways to keep up engagement. This, of course, has led to much criticism being lobbed at the company as putting profits over civic health. Facebook, in internal memos, has denied its platform as being used as a tool which led to the Capitol insurrection on January 6 of this year. 

The latest news on Facebook comes after the Wall Street Journal reported last month about the company squashing its own research about Instagram and the affect it has on younger users. It's mixed up in now cancelled plans for Facebook to launch Instagram for kids, which caught the alarm of multiple officials and led to lawsuits by attorneys general from 44 states. 

Imad Khan

Imad Khan is news editor at Tom’s Guide, helping direct the day’s breaking coverage. Prior to working at the site, Imad was a full-time freelancer, with bylines at the New York Times, the Washington Post and ESPN. Outside of work, you can find him sitting blankly in front of a Word document trying desperately to write the first pages of a new book.