It's a bad week for me and sonoff devices.
I have a Sonoff SC that will pair but not work.
I add the device in ewe link, it is detected and pairs and sets up wifi, but then the device never comes online. After the pairing process it just sits flashing the led once every couple of seconds.
I have tried power cycling the device, and re-added it multiple times.
I am connecting to a router that I have other sonoff devices working with and I have also tried it with 2 different routers.
Thanks for your help
I have the same issue, but the support teams the only things that know to do is copy&paste solutions.... but doesn't solve the problem...