An influx of new customers is putting pressure on Sky's broadband network, it has been revealed.
According to the Register, home broadband users in some parts of the UK are receiving vastly reduced speeds at peak times, due to capacity issues at the local telephone exchange.
Sky said that an increase in network traffic - potentially due to more subscribers watching TV content online, or via the Sky Go service - has exacerbated the problem.
Customers in Bristol, Doncaster and South Wales are among those believed to be affected.
However, services are running as normal for 95 per cent of subscribers.
"Following a combination of an [underlying] increase in network traffic as well as an especially high rate of new customer additions, we are aware of capacity issues in a limited number of exchanges," a spokesperson for the broadband provider stated.
"We are aware of the issue and are adding new capacity to those exchanges as soon as we can. We apologise to all customers who have been impacted by this issue."