Yesterday, the icon for the wifi connection, on the bottom right-hand-side of the panel, started to show up as a 'wired' connection icon when I'm using wifi (I'm not using the cable connection to the router) as shown hereĀ
https://imgur.com/a/UqNhp
How do I fix this?
I've added a new 'UBUNTU BUG' Prefix with the appropriate colors.
Please apply this to threads where Ubuntu Bug reports have been referenced. Cheers

This bug is definitely hardware specific. Try enabling network or PXE boot in the BIOS. That will make sure your NIC and wifi switches are always on at boot. Try a different S mode in the BIOS. I only had this happen once, on a Dell lap I think, and on an initial system install from a wired connection. Normal kernel updates caused it to just go away.
TC