Had a fuse blow this morning on same circuit as HH6 which tripped the RCD.
Since then, it won't connect to Internet.
It gets to the blue light, but with no connection, or a very short connection, before it drops it and goes back to square one.
I couldn't connect to the smartHub home to look at the logs or anything either.
Fortunately, I still have my HH5, and so dusted that off and it connected first time, and hasn't dropped since.
Factory reset perhaps?