GeorgefromLightbox:
Hi all,
We recently identified a network issue which may have caused the recent buffering issues you have been experiencing. This issue was resolved as of 6pm on Tuesday 9 August 2016.
If you continue to experience significant buffering delays after this time, then please let us know so we can investigate further: drop me a PM with your details (Lightbox login, date/time you were watching, what you were watching).
Note: peak time Internet traffic can also cause this, so worth bearing in mind.
Thanks for that update.