I connected a single switch and it was working properly. In the last day, it disconnected from the internet (showed a red wifi signal on switch) - so I pushed the reset button and set it up again and it was working. 20 hours later, the same thing happened - it disconnected from the internet.
I have a pretty strong wifi signal throughout the house and I have other switches which have been unaffected. Could this be defective or perhaps, should I connect it to a wifi extender that is close by (but there for a different function)?