I recently got my hands on Shelly 2.5 relay, and it just won't connect to my Orbi RBK852 router.Have tried disabling AX, enabling guess wifi, lowering 5ghz channel to 25%, setting static IP for the relay, but to no avail.Has anyone encounter similar issue? I am starting to lose hope as I suspect it is a compatibility issue, which means I either need to get another set of router or give up on Shelly.Appreciate any input from anyone, thanks!

Good idea, my iphone hotspot should be on 2.4ghz, let me try to use that instead.

1 thing to try is to make sure the device you're using to setup the IoT device is on the 2.4ghz network. You also might check on the Shelly website/forum as they tend to be a little less user friendly and for more advanced users.

The orbi rbk853 is with mesh wifi network and there is no standalone 2.4ghz and 5ghz channel. The router is supposed to figure out what channel the device is using. Hence I tried to weaken the 5ghz channel but that still does not work :(

the problem is with coding. A properly coded IoT devices doesn't care if your phone is on 2.4ghz or 5ghz. The ones that are coded poorly or by a lazy coder do care. So if you're phone isn't on the 2.4ghz it won't setup . You have options. You tried turning down the broadcast power. You can also disable the ssid broadcast (doesn't stop the radio). And then move as far from the router as you can. Then disconnect your phone from the wifi and reconnect. see if it connect to the 2.4ghz. if it does, try setup. If it doesn't, then we'd need another option. I've hotspotted my phone before with the same ssid as my router (shut off the router). I've used that to get the IoT device setup on the ssid. then I simply shut off the hotspot and turned the router back on. I haven't had to do that in years and it was many on cheap/poorly coded devices.

Unfortunately this still does not work. I paired the shelly devices using my phone hotspot and they worked fine. However, upon switching the network to using the orbi router, the device stopped connecting. I swapped in an old TP link deco M5 mesh router and worked like a charm.The issue is definitely with the Orbi RBK852 router. I suspect other IoT that runs on 2.4ghz will have the same incompatibility issue. If no solution can be found, I might have to consider returning them (if that's possible) or try selling them as 2nd hand :(

Anyone has difficulties connecting their shelly relay to Orbi RBK852 wifi network?

12 Replies

plemans
Guru
Dec 23, 2021
1 thing to try is to make sure the device you're using to setup the IoT device is on the 2.4ghz network.

You also might check on the Shelly website/forum as they tend to be a little less user friendly and for more advanced users.
- jimmyngtm
  Tutor
  Dec 23, 2021
  The orbi rbk853 is with mesh wifi network and there is no standalone 2.4ghz and 5ghz channel. The router is supposed to figure out what channel the device is using. Hence I tried to weaken the 5ghz channel but that still does not work :(
  - plemans
    Guru
    Dec 23, 2021
    the problem is with coding. A properly coded IoT devices doesn't care if your phone is on 2.4ghz or 5ghz. The ones that are coded poorly or by a lazy coder do care. So if you're phone isn't on the 2.4ghz it won't setup .
    
    You have options. You tried turning down the broadcast power. You can also disable the ssid broadcast (doesn't stop the radio). And then move as far from the router as you can. Then disconnect your phone from the wifi and reconnect. see if it connect to the 2.4ghz. if it does, try setup. If it doesn't, then we'd need another option.
    
    I've hotspotted my phone before with the same ssid as my router (shut off the router). I've used that to get the IoT device setup on the ssid. then I simply shut off the hotspot and turned the router back on. I haven't had to do that in years and it was many on cheap/poorly coded devices.

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Anyone has difficulties connecting their shelly relay to Orbi RBK852 wifi network?