Forum Discussion

Tutor

Nov 28, 2022

RBK753 why does reset router needed to reconnect dropped device? (Lennox S30 thermostat)

Periodically one of my Lennox S30 thermostats will drop WiFi connection. When I try to reconnect it is unsuccessful and times out. However if I go to the Orbi and do a router reset, and then try to...

Serranopr

Tutor

Nov 28, 2022

What I mean by reset is actually going onto the orbi admin web interface and doing a Router "Reboot".

When the thermostat shows no connection to the WiFi (it got dropped), going to that device and trying to reconnect fails. The network shows plenty of signal strength (-40dbm or so), however you can try and try again and it will simply timeout, connection failed. However if I go to the Orbi admin, and do a router reboot, wait for Orbi to completely come back up and then attempt to connect the thermostat it will connect on the first attempt. It seems like doing the router reboot is flushing something, and then the reconnection attempt is successful. My setup is a Motorola modem (latest) supporting Comcast ISP and Gig speed, very low latency. The thermostat hub is in the attic and probably closest to a wired Orbi satellite, but there is some ductwork and it may see the main Orbi router better which is perhaps 25 feet away.

Orbi RB753 with current firmware (no updates available) V4.6.9.11_2.3.5

Region	North America

2.4 GHz Channel	Auto (5)

2.4 GHz Wireless mode:	Up to 1147 Mbps

5 GHz Channel	36 + 40 + 44 + 48(P)

5 GHz Wireless mode:	Up to 2402 Mbps

FURRYe38
Guru - Experienced User
Nov 29, 2022
What is the size of your home? Sq Ft?
What is the distance between the router and 📡 satellite(s)? 30 feet or more is recommended in between RBR and RBS🛰️ to begin with depending upon building materials when wirelessly connected.
- Serranopr
  Tutor
  Nov 29, 2022
  The home is >4000ft.
  
  RBR router ------> wired> --- Sat1..........wireless Sat 2
  thermostat
  
  Thermostat is between Router & Sat1, and the admin web interface for Orbi shows it is connecting to the thermostat on the main Router, 2.4Ghz.
  - FURRYe38
    Guru - Experienced User
    Nov 29, 2022
    What is the distance between the router and 📡 satellite(s)?
    
    Possible that the thermostat is having a hard time keeping connected due to all the wifi signals coming from the RBR and the two RBS.
    
    For that size of home, you only need the RBR and one RBS. https://youtu.be/UR0viMLISz4
    
    Try this, Turn OFF 1 RBS.
    
    Set the Transmit power on the RBR to 50%. Set 40Mhz co-existence. Under Advanced Tab/Advanced Settings/Wireless Settings
    
    Set manual channel 1 and 40.