I would like to know how to get rid of the message "your Internet connection is unstable?
There are a few potential things that can cause this.
You are too close to the router. Seriously, this can happen on Samsung devices. I've seen it on the S4 and Note 3. It's very unlikely but worth mentioning on a list.
The 2.4Ghz and 5Ghz are interfering with something on the device. Try turning 5Ghz off altogether.
You could add the phone's ip address to the router's
In the phone's network/wifi (varies by device/version) settings, untick
auto switch between WiFi and mobile network
As suggested here:
TP-link router has the ability to create a 'guest' network. So besides the 2Ghz network and the 5Ghz network, I created a 3rd network, only for the 2 mobile phones.
- In your router's LAN setup section you can add your phone to the section where it says