I didn't change any physical devices. The problems I had were with my smart bulbs disconnecting because they were being flooded from traffic from other devices on the main network. So the solution was to put them on the guest network that has a different Subnet from the main network, and they've been fine since. So that wasn't router related, that was client related and needing a different config from the defaults. Your issue sounds different.I did not change the phone, I have the same device.