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Sonoff Mini R2 - device disappears from eWeLink app, is it a coverage issue?

pioooo9999 318 11
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  • #1 21325437
    pioooo9999
    Level 10  
    Hello.
    Sonoff mini R2 - I have a couple of these devices but I have a problem with one. The question is whether it is a matter of distance from the router....
    Generally it works ok but often it is not visible in the ewelink app and manually it is then impossible to switch on or off. From the set schedule it works as it should.
    Please advise.
    AI: How far from the router is the Sonoff Mini R2 device disappearing from the app? .
    Approximately 15 metres
    AI: Can you provide information about the Wi-Fi network, such as signal strength and frequency band (2.4 GHz or 5 GHz)?
    2.4
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  • #2 21325874
    Erbit
    Level 38  
    If this is the furthest device of all then the answer is obvious.

    You can still stand next to this device with the WifiMonitor app installed (or any other) and show the signal levels. Hold your phone close to the device. Such a test as here #1 -> https://www.elektroda.pl/rtvforum/topic3158772.html

    Screen upload to the forum.
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  • #3 21326091
    pioooo9999
    Level 10  
    Shows -79 dB. Sonoff Mini R2 - device disappears from eWeLink app, is it a coverage issue? .
  • #4 21326136
    Erbit
    Level 38  
    pioooo9999 wrote:
    Shows -79 dB.



    -80 dB is the limit for devices using the 'internet' but simple IoT devices that transmit little data should work on such a weak signal.

    However, I'm assuming that the R2 itself is in the box and it would be rather difficult to put a phone in there but presumably the wall is an additional restriction on the signal and it's more likely to be weaker there and since the signal is weak at the R2 I'm betting that's what's causing the problem.

    Also show the "channels" tab.
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  • #6 21327543
    Erbit
    Level 38  
    No channel information. You took the screen too quickly.
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  • #8 21327758
    Erbit
    Level 38  
    There are many networks on the same channel. Move yours away from the scope of the current networks. There's a chance it will stop breaking (at least until someone comes up with the same idea).

    If all the nets are yours then make sure they don't overlap and most take care of the one the problematic R2 is strapped to.
  • #9 21327773
    pioooo9999
    Level 10  
    How do I move them away?
  • #10 21327782
    Erbit
    Level 38  
    pioooo9999 wrote:
    How do I move them away?


    In the WiFi configuration, change the channels. What kind of device is this ?

    Is R2 strapped to the SSID luteklan or to the SSID IoT ?
    Is the SSID "SOLAR..." is the reapeter ?
  • #12 21328223
    Erbit
    Level 38  
    Networks should not overlap channels. If you have access to the configuration of this Huawei then you need to go into the WLAN settings and change the channel, preferably somewhere on 9.
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Topic summary

A Sonoff Mini R2 device located approximately 15 meters from a Huawei router on a 2.4 GHz Wi-Fi network intermittently disappears from the eWeLink app and cannot be manually controlled, although scheduled commands execute correctly. Signal strength measured near the device is around -79 to -80 dBm, which is weak but potentially still functional for low-data IoT devices. The device is installed inside a small switchboard behind thin plastic, which may further attenuate the Wi-Fi signal. Multiple Wi-Fi networks overlap on the same channel, causing interference. It is recommended to access the Huawei router's WLAN settings and change the Wi-Fi channel, preferably to channel 9, to reduce channel overlap and improve connectivity stability for the Sonoff Mini R2.
Summary generated by the language model.
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