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Sonoff looses Wifi connection


My Sonoff has the problem that it frequently looses the connection to "the server".

When I Power on the Sonoff it connect to "the server". After some seconds the green LED is constantly green, and the Sonoff can be switched on/off via the App.

Some time (sometimes a few minutes, sometime 15 minutes) later the the green starts blinking "fast", and the App reports the device disconnected. Waiting for a reconnection does not change tis, it stays unconnected.

I checked that the Wifi Router is working.

When I remove power from the Sonoff and power it up again, the Sonoff "boots" and after some seconds the led is constantly green again, and is accessible by the App.

In this way the Sonoff is not able, so what can I do? I guess the Sonoff should reconnect automatically, or this not implemented?


23 people have this problem

Hi Filip,

Nope, it's none of those. I've tried everything over the last 6 months mate.

Ripping the Speakers out fixed them beeping at me all night however!

*Photos attached for anyone else in the same predicament




1 person likes this

For a long time I see it constantly green light and I see it offline, I have to restart the wifi modem before it is back to normal.

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i got 2 devices who has the same problems. just 2 m away of a acces point. but  losing connection over and over
logging on the wifi says something with wap/skk authentication error.  is the device forgetful?

This is going to be a random issue, all my Sonoff devices are disconnecting from time to time however the WiFi light stays on but they are inaccessible from cloud services like Alexa or IFTTT. They work fine within LAN.

I have escalated this already to Ewelink/Sonoff but I don't think this is going to be fixed soon. 

Recently I have switched to Sonoff Zigbee and for the last 2 weeks is seams to be stable on both LAN and Cloud.

Not sure what is the root cause but there are days where all is working fine w/o any issue and days where all they stuck one by one

After few days of fighting wight Sonoff pairing process I have installed the light switches (I had to rework the installation to have N). Now, I see one switch is disconnecting from wifi, second (i have two switches, side by side) is working fine. Btw. Since I'm checking this forum, I never saw Sonoff team answering. This is making me sure, Sonoff is not the best choice ;)
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