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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.





Substitude IP address of to


Right now for some reason current IP doesn't accept connection to 8081 port, but the old one - does. You can check it by:


telnet 8081


telnet 8081


Here is an example how to make a substitution in Mikrotik router:

Open Winbox

Get to "IP > DNS" menu

Click on "Static"

Click on "+" (add static DNS entry)


Regexp: <leave empty>


TTL: <leave by default [1d 00:00:00]>

Click on "OK"

Close the DNS Static subwindow

Click on "Apply"

Profit! Now your POW is online!

Very bad product,not working for a day,always offline!!!!


The same here. Work only one day. Then offline 3 days in a row. Very bad.

after a few months of perfect functioning this morning all of my devices are now switched off offline-I reset all the routers, devices but nothing to do continue to stay offline. what should I do?

I think they upgrading their servers. You can only wait until is done.

Ah ok thanks

even the app does not allow me more to enter certainly will be their update I hope. only with the end of the Chinese year we hope they are not closed .....

even the app does not allow me more to enter certainly will be ther update i hope only with the end off the Chinese year we hope they are not closed.....

The problem with this app is that when server is down the app is not working properly. Until they add a LAN support we will all have similar problems when server is down. Even with the upgraded server.

so you have all devices in off lines? and the app not work?

i live in italy....

Yes, I'm from Croatia and everything has been ok until today. Now is everything down. I hope they will resolve it until tomorrow...

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