A number of Virgin Media subscribers were unable to use their broadband services on Saturday (November 8th) as a result of a web filtering glitch.
The Register reports how customers were prevented from accessing websites over the firm's network, causing many to vent their frustration on social media.
An error with Virgin Media's Web Safe system has been blamed for the loss of content access.
One subscriber - Red Bren - told the news provider that his Virgin Media broadband stopped working due to an SSL error on the Web Safe server.
"What's annoying is that I haven't opted in to their Web Safe service, but all my traffic is now being routed through it," he stated.
"Or rather [it] isn't because it's broken. I also can't check my Web Safe opt-out status as the site is experiencing issues."
The customer said it reflects badly on Virgin Media when the firm effectively performs a Distributed Denial-of-Service on its users by redirecting all traffic to the same server.
Virgin Media apologised for the downtime and confirmed that the issue had been resolved.