Default [Q] Fool Andriod TV into accepting Ethernet as WiFi or phone Data

Hello guys,

BBC iPlayer and TuneIn Radio will not play on my Android TV using Ethernet.
They both behave as though I had no internet connection and say I must connect to WiFi or phone data.

I saw a fix which does not work, to add FALSE to qaWifiOnlyMode.txt file, and put that in the root of the device, but this does not work.

I imagine that someone who knows a lot about hacking would find this easy to do, but I've looked for an answer for two days, and not found one.

Any boffins out there know how to sort this one?

Tx
Mark
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Nexus 5 stock < SGS4 9505 < Sony XperiaZ < SGS3-LTE < SGS3 < SGS2 <- SGS <- iPhone 4 (3 weeks) <- HTC Hero <- HTC Touch HD <- N95
& NEXUS 10 - 4.3 JWR66Y
Windows 8.1