You have to select the device from the wifi options available on your smartphone and by doing this it can connect to your wifi. I'm not sure of the technical aspects of this but that's what happens. I've had this message from Drayton that explains the problem.
"Are both the 2.4GHz network and 5GHz network using the same SSID? If so, please separate them so that their channel names are different (e.g. by putting a 5 at the end of the 5GHz network). The Wiser Hub will successfully connect to the 2.4ghz frequency.
This may not be an option on some routers, if that is the case please check for "compatibility mode".
What channel is the 2.4GHz network running on? If it is on auto, please change this to a manually selected network between 1-11 - preferably 1, 6 or 11.
Selecting the proper Wi-Fi channel can significantly improve your Wi-Fi coverage and performance. In the 2.4 GHz band, 1, 6, and 11 are the only non-overlapping channels
Adjacent-Channel interference occurs when devices from overlapping channels are trying to talk over each other. Channels that have interference from other devices are considered to be 'crowded'. The time it takes to transmit data is increased and you are left waiting for your Internet request to be made."
Unfortunately this has now worked for me as they cannot give my 5 and 2.4 a different ssid. Waiting for EE to get back to me as their tech support had not seen this issue before. I suspect an older router will be needed
