but i want to remove my old wifi network (dhavoc89) which used (deco m5 and x20) and continue using the new network (dhavoc1301) which is using my new upgrades (x50)... i have tried that solution he...

no.. i dont want to add those deco x20 and m5 coz those are up till 500mbps.. i want it all removed and only x50 remains.. since right now my isp is 1gbps and only x50 can support that

so do i need to disconnect the current deco(x50) and reconnect back deco x20 with the router first before resetting it?

Hello. I have a little bit confused back story before asking those two questions as mentioned above. So my backstory is: I have bought some decos few years ago for my 500mbps internet because the...