There was, quite separate to any other issues, a problem at 02:06 which resulted in the main LNS resetting. All customers quickly reconnected with no problems.
We have detailed logs of the actual problem, but it is baffling us slightly at present. We will be investigating this later in the day. This does, however, appear to be completely unrelated to everything else that has been happening.
We are rebalancing some lines between LNSs over night after this incident.