Cisco Meraki Wireless and Tado X devices

[Royv]

Hey all, 

I recently bought myself a smart thermostat with valves. I am having trouble to set the devices up with wifi (Using an MR33). 

besides the bridge for thread and matter devices the rest just wont connect. 

Using the same equipement in another wireless environment is making it a breeze to install, which to me says something in the meraki is making the connectivity issues appear. 

My network consists of a meraki firewall, switch and AP. I have upgraded the devices, changed radio settings and checked the other devices of possible misconfigurations, but it all is not helping me connect those devices to the wireless Network. 

typical installation of those devices are a bluethooth connection from phone to device so it can push the wireless settings. But it just wont connect and i am wondering if ppl came across these kind of challenges. 

Kind regards,

Roy

[VivekT]

Hi,

Can you please tell me how are you setting up thermostat ? Is it with some app ? Please check the following 

it should be disable if two devices want talk to each other on same wifi. 

Wireless>>>>>Firewall & traffic shaping

Block IPs and ports

Enabled               (bridge mode only)

Layer 2 LAN isolation

Disabled

[Royv]

Hey VivekT, 

Thnx for the reply! configuration of those devices indeed happen via mobile app (Tado). the app briefly makes an bluetooth connection to the device in order to push the settings of the wlan. it is a thread and matter device which uses a bridge device thats connected with wifi. The bridge itself connects fine, however the thermostat and valves not. 

About the client isolation:

i double checked but thats indeed how it is configured. 

Kind regards 

Royv

[VivekT]

ould you please perform a packet capture on the Meraki access point to check if there is any communication between the thermoset and the AP? I understand this is unrelated to Air Marshal, but please verify if there are any blocks. Additionally, confirm whether the 2.4 GHz band is enabled and if your device operates only on 2.4 GHz

[Royv]

Hey VivekT, 

Thnx for reaching out again. I have been digging around and found some things. First of to answer your questions, yes 2.4ghz is enabled and it operates on that. Further more packet captures have made me look deeper into the matter because i was seeing some unexpected IPv6 traffic. 

Thread / matter makes use of the 802.15.4 standard (6lowPAN). It connects the bridge via IPv6 to the IOT devices. Seeing meraki doesnt not have a radio for this, the bridge x (How tado calls them is being used as thread router. Also not entirely sure if im describing it technically correct, but it works for me to get the point)

Meraki reports you need to enable a certain Setting under general in the network wide settings. Namely: wireless IPv6 bridiging. At first it didnt resolve anything and didnt even change anything. So i then configured IPv6 on the network and suddenly i dont get the error message anymore that the device cannot be reached. Now it is checking the wireless connectivity for ages till it times out. 

References:

documentation.meraki.com/MR/Other_Topics/IPv6_Support_on_MR_Access_Points#MR_27.X_Firmware_Release_-...

documentation.meraki.com/General_Administration/Other_Topics/IPv6_Device_Compatibility

also i came across a few older threads on this forum and on others with uses with the same issues, but sadly no solution to this. 

Kind regards,