This could be because of a variety of reasons. The first thing you should try is using a Wifi-enabled device. Lumia saves settings on the cloud, which makes it an easy process to log in to Lumia Stream with
a laptop to search for your devices.
Certain new routers from brands such as **Asus, Netgear, Cisco, and Ubiquiti **may have these features.
This can cause low bandwidth devices, such as RGB lights, to fall off the network or be non-responsive.
Complete the following steps to prevent this from happening:
Log in to your wireless router settings.
Head to Wireless > Professional > Airtime fairness > Set to disable
Another reason you can’t find your device could be because of AP Isolation.
Also known as Client Isolation or Guest Isolation mode, this is what gives devices access to the internet without having to communicate with other devices on the network.
This prevents RGB lights from being set-up, as well as allow further control via the local network. College and communal networks typically use AP Isolation.
Disable AP Isolation on your router. If you are using a shared network, you will need to switch to the private or hotspot network.
Unfortunately, if you cannot disable this feature, you will be unable to properly set up your RGB lights.
Please see the owner’s manual for your router to complete the appropriate steps.
The last thing you could try is connecting via WiFi from your computer. If you do not have a WiFi card on your PC, you could even just use your laptop alone, as settings are saved in the cloud and seamlessly
transfer from one device to the next.