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Sonoff T1 3 Gang random beeps

I have 8 Sonoff T1 installed, 3 of them 3 Gang, 3 of them 2 Gang and two 1 Gang. It seems that most of them randomly "resets". Emits a single beep, pause and then two beeps. The light flashing and then back online again in a minute or two. This is very disturbing if it happens to one of the three switches close to my bedroom in the early hours of the morning! They all have the latest firmware. Why does this happen? Can I stop it from happening? It seems like especially the one does this quite often (sometimes more than once a day) while some of the others never do it (that I've been around them to notice). Any thoughts/suggestions?


2 people have this problem

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Mine all starts with 10006, so not the same problem you seem to be having. All three  the T1 3C is in the 10006 range and all three resets with 3.3.0 (less often than it did with 3.1.0).

Has anyone tried adding their devices to a "Guest" network on their router? Make sure nothing else connects to the guest network, only the Sonoff devices and then use your normal network for all your other devices.

My Mate did this and his switches hasn't beeped since... i am sceptical though and don't have the time at the moment to test for myself... Feedback would be greatly appreciated.


I'm skeptical too, the problem seems hardware, how it can affect the guest network I don't know.

Anyone received how to solve this problem? I'm reading the posts but I didn't see the solution. I'm with the same problem.. My T1 3 gang US makes a sound beep intermittent..

Unfortunately, now being the owner of Sonoff product, you will find that that the support is terrible. If you are lucky and get units that doesn't do this, it is a great product for a great price, but otherwise, say hello to lots of frequent weird things happening and zero support.

@Gerhard... This was my perception reading the posts... Unfortunately! The product sounds be good but the after sales could be better... Terrible.
I have changed all 26 light switches in my house with blind faith. Now they switch on and off randomly and beep for no reason. My house is like a Christmas tree and my wife is not impressed. Can someone please help me solve this.

Hey guys,


I had the same problem with my 3 gang switch.  However I noticed that this only started to happen after I installed Trenmicro HouseCall for Home Networks. I don't know if it was a coincidence or not but after I uninstalled the program the problem disappeared.


It's just an assumption and suggestion based on the experience I've had. Do you have any network devices that might be trying to communicate with these switches indefinitely? Could this not be a problem similar to a homemade DoS?


I really don't know what the real problem is, but the fact is that after uninstalling this program from Trendmicro I had no problem.

Maybe it's because I only have one switch installed. I will install 6 switches this week and I will see what happens. The problem may be related to the number of switches installed.


I hope I helped in some way with thinking about the problem.

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