IoT connection issues

Question

Hi Guys,I'm facing this issue some time ago and I tried almos everything but without any full success.&nbsp;My mesh setup is, one RBR50 2 RBS50 and 1 RBS20&nbsp;I've in my house 12 switch sonoff connected to my Home Assistant. The switchs are in 0 floor and the HA Server are on 3rd floor, to increase the signal I installed one RBS50 on 2nd floor, so the path is Router -&gt; RBS50 (2nd floor) -&gt; RBS20 (3rd floor)&nbsp;Almost all devices have the connection strong and without any isssues, but time to time 2 or 3 swichs loose the connection to the server even if I restart the switchsthe issue remains, I need to wait hours, days, weeks for the swtichs connect again and other fails...If I ping from the server 3rd floor to the 1st I can't get the ping, but if I connect directly on RBR50 (0 floor) other eth for example I can ping without any issue the switch and the server, also the same over wifi if I'm connected on RBR50.&nbsp;I've done some wifi changes like&nbsp;&nbsp;Long Preamble and TransmitPower Control = 50%Enabled/Disable Daisy-Chain TopologyEnable/Disable Implicit BEAMFORMINGEnable/Disable MU-MIMOI've fixed the IP in switchsReserved the MAC on Ethernet configs,without any results.&nbsp;I don't know what do more to stable the connection betwen switchs and the server&nbsp;FW installed in all devices: V2.7.3.22&nbsp;What can I do more to try solve this issue?&nbsp;Thank you

CrimpOn · Answer

Are these all the same model of Sonoff switch? (which one?)
Do the same switches fail every time, or is it all switches?
For the path to be router-&gt;satellite-&gt;satellite, Daisy Chain must be on.

builder3303 · Answer

Hi,the sonoff are all T1EU Wifi Smart Switch (1 and 2 gang) with&nbsp;lastest tasmota firmware (the older ones have the same issue)No, it's not all at the same time, it's 2 or 3 then the others are working good without any issues.I have the Daisy Chain ON but to test I disable, this is not the solution so I enable it again.&nbsp;thank you&nbsp;&nbsp;

CrimpOn · Answer

Thanks for the model number.&nbsp; Does this device display an LED pattern when it is off-line, as described in this post:
https://support.itead.cc/support/discussions/topics/11000001238&nbsp;
&nbsp;
Sorry my question was not written well.&nbsp; When you notice a switch not working, is the problem limited to certain switches, or is it random?
i.e. one day 2-3 switches may be off-line. Another day 2-3 different switches off-line.
&nbsp;
Is there a pattern of failing switches being connected to a specific Orbi unit?
The web interface, Attached Devices page shows which Orbi each switch is connected to.
&nbsp;
Is the Ping problem constant and repeatable?

builder3303 · Answer

LED patternThe LED pattern looks like the OFFLINE, if I turn the energy down and up again, sometimes the switch comes on online.This is what I can see in the switch console.8:38:05.978 MQT: Connect failed to 192.168.1.11:1883, rc -2. Retry in 120 sec08:38:33.512 RSL: STATE = {"Time":"2021-09-07T08:38:33","Uptime":"0T18:52:18","UptimeSec":67938,"Heap":27,"SleepMode":"Dynamic","Sleep":50,"LoadAvg":19,"MqttCount":1,"POWER":"OFF","Wifi":{"AP":1,"SSId":"MyHome","BSSId":"xxxxxxxxx","Channel":13,"Mode":"11n","RSSI":58,"Signal":-71,"LinkCount":3,"Downtime":"0T00:00:16"}}08:40:06.785 MQT: Attempting connection...08:40:06.996 MQT: Connect failed to 192.168.1.11:1883, rc -2. Retry in 120 sec&nbsp;switch not workingit's random, example Switch_1 Switch_2 Switch_3 Swtich_4day one:Switch_1 on Switch_2 off Switch_3 on Switch_4 offNext days or weeksSwitch_1 off Switch_2 off Switch_3 on Switch_4 onNext days or weeksSwitch_1 on Switch_2 on Switch_3 on Switch_4 onnext days or weeksSwitch_1 on Switch_2 on Switch_3 off Switch_4 offI can't get a pattern here... almost the switches are connected to the router, and I have 2 or 3 connected to one satellite installed also on my 0 floorI can reach the switch web interface if I'm in 0 floor connected to router or the satellite I've here, but I got yo the 3rd floor I can't ping the Switch and i can't reach the web interface&nbsp;Ping issueI've also in 3rd one server with VMs and i can reach all of them, also, when I see one switch offline I make some tests remotely doing router -&gt; 3rd floor and inside the VM 3rd floor -&gt; router&nbsp;I'm sorry if I'm not explain better way, but this is wired and this only happens with IoT devices specially with switches&nbsp;&nbsp;

builder3303 · Answer

Curious fact:Today I have 2 switches offline, then I unplugged the RBS20 from the energy wait like 5 min and plugged again.The switches come to online...So, with this test maybe the problem is the communication between the router and satellite loose packages and the switches comes offline somehow...&nbsp;Another test I will do is, change the RBS20 is on 3rd floor for one RBS50 I've in 0 floor and see if this still happens.&nbsp;&nbsp;

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IoT connection issues

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