I know this might sound obvious but have you checked that the figure of eight plug hasn’t become dislodged, is the fuse in the plug okay. Have you tried plugging it into the original socket. They are the first things I’d check. Other than that I don’t know.

It also may be ‘too far’ from the device (speaker) it is bonded to. 

Yes I have tried another cable, moving it back to original spot and multiple different outlets. Still no light unfortunately. 

In that case a call to Sonos support might be the best option. I’m in the UK and called them last week and got through in a matter of minutes. The only other thing might be a factory reset if you haven’t already tried that.

Unplug it, as suggested check the connection, leave it unplugged for a minute and try plugging it in again.

With the Factory Reset you erased valuable diagnostic data and made it more difficult for Sonos to assist you but a call to support should be your next step.

Sonos is very clear that the factory reset is to be used for a few specific situations and support should be contacted first, before any reset in all others.

Thanks for the tips. I did call support and they said it must be dead as no status light comes on when plugged in or trying factory reset.  They offered a new cord, not sure that will do anything as I tried another one already and didn’t work.  

Tell them you plan to replace it and ask for a sympathy (?) discount on a replacement, you may get lucky.

Several here recommend the Sub gen 3 based on price or you can get a Sub 4 for the enhanced electronics. Tough choice!

If you are the original owner you should have a trade discount. Check your on-line upgrade page.