Not working

The lights schedule is not working. I bought 5 light bulbs 2 years ago, the schedule were working fine. Since the 2 last upgrades, schedule fails each time. I have tried everything. Check their community forum. The thread is flooded with users dealing with the same issue. This is NOT something to buy.
The wemo plugs i have are working fine though.

Fred7779 about Wemo, v1.16.2