Some StarHub cable broadband customers were unable to access the Internet as early as 7am on Wednesday. Many of these customers could not also get through the StarHub customer hotline and started complaining about the problem on the telco's Facebook page and online forums.

When contacted, StarHub acknowledged the problem, which it said started at 8.30am. It also said that the disruption was "intermittent" and affected only "a small number of customers". Specifically, the problem affected only those who had switched off their cable modem the day before and turned it on for the first time this morning.

The telco apologised for the disruption and said that its network engineers have been progressively restoring service for affected customers.

It is still investigating the cause of the problem.