We'd like to thank customers for patience this week. The tests we have been doing in the evenings have been invaluable. The issues seen have mostly related to links to Maidenhead (so voice calls rather than broadband connections). The work we are doing has involved a lot of testing "on the bench" and even in our offices (to the annoyance of staff) but ultimately testing on the live customer services is the final test. The results have been informative and we are very close to out goal now. The goal is to allow router maintenance with zero packet loss. We finally have the last piece in the jigsaw for this, and so should have this in place soon. Even so, there may be some further work to achieve this. Apart from a "Nice to have" goal, this also relates to failures of hardware, power cuts, and software crashes. The work is making the network configuration more robust and should allow for key component failures with outages as short as 300ms in some cases. LNS issues tend to take longer for PPP to reconnect, but we want to try and be as robust as possible. So, once again, thank you all for your patience while we work on this. There may be some more planned works which really should now be invisible to customers.