I have fiber internet 100mb/s. I was using Archer CV5 with 2 RE305 (V3) extenders. Since CV5 didn't support One mesh, I bought VR400 (V3). Setup Onemesh system with no problem.

However, when I am walking in my house, my internet disconnects while switching from modem to extender. All modems have the latest firemware and tried reseting and setting up the system again. 

What can I do. Any ideas.