Unstable network with 4 Multy X nodes in combination with an Android smartphone

Multy App will require an internet connection to sync your Multy device.
Even the phone is connected to the Multy wifi, it will still access our Cloud server to sync your Multy device.
1. May I know your Network topology?
2. Are you able to access the internet with Multy wifi? Please make sure your phone is able to access the internet before open the Multy App.
3. Can you open the App next to your Root Multy? The phone should able to get the best throughput next to the Root.