@David-TP 

I can confirm that the clients on the IoT network DO NOT appear in the Main client list, but they are all working.

Also, the clients in the IoT client list reappear sometimes I have 2 out of 6 or 3 out of 6 showing.

I do not have the "Submit DECO App Log" option in my App version 3.4.25.

Please tell me how I can submit the logs.

Thanks.

Update.

I disconected 4 of my Smart devices from the IoT network.

I readded them, they appeared in the IoT client list momentarily or for about 5 mins, then they disappeared.

I checked the IoT offline clients list and my Smart devices are there showing as offline.

I think I may have found the issue.

The devices that "disappear" are temperature sensors, I believe that they disconnect themselves from the IoT network hence they appear in the offline client list.

They awake and reconnect on an hourly basis,then sleep for an hour in a disconnected state. I am guessing this is probably a battery power saving feature.

So, probably not an issue with the IoT network.

I'll add some different Smart device types and check the behaviour.

Thanks @David-TP