From around 6:30pm there was IPv6 routing problems to some hosts via our Linx peering - notably to Google.
A temporary workaround was applied at 9:30pm and routing has been restored. Staff were alerted to this via customers using the 'MSO' SMS facility, however, do to individual staff circumstances it was not until 9pm that staff were able to respond. We do apologise for the time this took, it is very rare for all the staff that are alerted in this way to all be unavailable at the same time. We'll consider what can be done to improve this.