Virgin Media broadband went down for hundreds of customers today - with households complaining that they couldn't get online.
Hundreds of Virgin Media users reported connectivity issues, according to outage tracker DownDetector.
Problems with Virgin Media internet were logged all over the country, with hotspots in London, Belfast, Birmingham and Glasgow.
Landline internet problems made up 72% of customer complaints, with 10% reporting issues with mobile internet and 18% with both.
Customers took to Twitter to report issues this morning.
One Virgin Media user said: "Broadband in London E3 has been down for 24 hours now and wasn’t fixed by midnight as promised. When will it be fixed?"
Another said: "I can't even connect to your website or my account using my phone internet. How long is this likely to last please? I have a full day's work to do.
Responding to customers on Twitter, Virgin Media said: "We're aware of this issue and our teams are working on resolving this issue as soon as possible. I do apologise for the inconvenience."
A Virgin Media spokesperson told The Mirror that its broadband, TV and landline services are working.
But the spokesperson added: "We’re aware of a technical issue which means we’re not able to access customer systems or activate new services right now, but new installs will still take place.
"Our TV, phone and broadband services are unaffected and customers wishing to manage their account should contact us later this afternoon. We apologise for any inconvenience caused and our teams are working hard to get this fixed as quickly as possible.”
Nine million broadband customers say they are not getting the speeds they believe they signed up for, according to new research from Uswitch, the comparison and switching service.
A quarter of customers (25%) say they regularly fail to receive the internet speeds they should, while 7% say they never do.
Despite this, around half (46%) of affected customers say they have asked for compensation from their provider.
Last week The Mirror reported how consumer expert and columnist Martyn James saved £540 on his broadband bill after years of overpaying.
According to Ofcom’s code of practice on broadband speeds, which most companies have signed up to, your provider should give you a minimum guaranteed speed for your service at the point of signing up, which you can find in your contract.