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Sonoff is always offline

Hi Support Teams

I buy Sonoff products to sell in Viet Nam about 5 months ago

This time, I bought 30 pcs. I try to setup it but all is always offline. I try in iOS or android and different account, it still offline . I setup sonoff successfully many times before. I thinks error in hardware, service or sortware. I sent feedback in eWelink with email 

Can you help me ?

5 people have this problem

Yes, I have this problem. How can I resolve?

Sonoff FAQs, look for section Device offline - follow link.

1 person likes this
follow which link?


Hello, I have a similar problem with a sonoff th16, the device is paired to APP but is offline.
checking connection on the router, device is trying to connect to server at port 8081 that is not answering sync requests.



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