Can't connect to devices using 2Ghz guest network when connected to my 5GHz wifi network
I have various devices such as a weather station, boiler and security cameras that have to be connected via the 2.4Ghz network. I can connect to these when the device I am using is connected to the 2.4Ghz wifi. I am not able to connect to the devices if I am connected to the 5Ghz network. Is there anyway to fix this.
Similarly, I have a Raspberry Pi connected via ethernet cable. I can connect to it using 5Ghz wifi but not the 2.4Ghz.
Thanks for the reply. When you mentioned device isolation, I've just realised I've made a schoolboy error 
. I have 2 WiFi networks, one for 2.4Ghz network and another one with a different SSID for the 5Ghz network. To get around the problem, I just added the 2.4Ghz band to the network with the 5Ghz and setup the devices to use this network. I can now see all of the devices.
Just out of interest, I looked everywhere in the deco app for my m4r devices and I don't see the device isolation option anywhere?