Disable wifi and use LAN only

I was on version 5.0.2 of the wifi, wired connection and updated to 5.1.0 and now it just connects to wifi, which I don’t want, I want it to use LAN cable.
No idea where I can go and disable wifi, any ideas?

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Strange one, reverted back the wifi FW to 5.0.2 and LAN working again

@glyn.hudson