Wish I had seen this advice earlier as when I joined ee my sky q boxes were continually failing and despite calling ee and sky help desks no one could help me. Was very frustrating as ee kept telling me it was nothing to do with their broadband or new router, but it was, as refitting my old BT router solved the problem.
What I did was run an ethernet cable from the router to the main Sky Q box and that immediately solved the problem.
EE needs to be more transparent re this problem as it impacts anyone joining ee who has Sky Q boxes. I have not tried the 2.4Mhz separate network, but it does sound convincing.
We have 17 wifi devices in the house, a couple are also quite old devices (printer scanner must be 10 years old) but they immediately joined the ee wifi and worked. It was only the sky boxes that were a problem.
