It looks like we have a blip in RADIUS around 5pm which has resulted in lines showing "pink" or "salmon" on the management pages and some people getting odd status update emails and SMSs.
Services are working - this is an accounting issue.
We're not sure what happened exactly, but this is a scenario that the systems are designed to cope with relatively sensibly. Some usage may not be metered for the next few hours and some lines will be PPP restarted over night.
We are also doing an LNS switch over tonight, but there are issues with that which means it is likely to all happen later than usual, i.e. around 7am.
As it happens we are working on some updates to RADIUS which is hoped to be phased in over the next few weeks. Incidents like this, whilst minor, and not service affecting, are a nuisance, and they are being incorporated in to the new design to make such issues less likely.
We're clearing the pink lines now, ppp restart.
Some customers on C or D gormless will have gaps in their graphs this afternoon and this evening. The lines have been connected through these gaps but have has some PPP restarts.