Wi-Fi & connectivity

[Weltm]

I have restarted, redid my network connection and factory reset this thing a million times and it will not stay connected to the internet.  When I connect to my network it says it's connected with excellent signal strength and when I open any streaming app 2 seconds later it will say there is no connection.  All the articles you have just say to restart it or make 0 sense, so can someone please tell me how to fix this it's been like this for a month now and all our other devices work just fine.  Also if the fix is in anyone technical or complicated please explain it to me like I'm 4.

[AvsGunnar]

@Weltm 

Lets start with the Roku model number (from Settings/System/About), the router model number, and your ISP (internet service provider).

If you perform a connection test from within the Roku, what is the "internet download speed" being reported? (Settings/Network/Check Connection)

What wireless channel is the Roku using? (you can see this from the connection test above, or go to Settings/Network/About)