Thanks for the replies guys.
You are both correct. But I don't want to spend too much time, because you are correct, it's not the best place for wifi and I do plan to plug in an ext AP with AC capability at a later date. But my reasoning for all in one is a temporary solution, as mneinoted, just like I had with my COTS product. Similary, I do want to get a separate efficient switch, but at the moment 3 LAN ports will be fine since most devices in teh house are wireless anyway. And you may say, why waste time with temporary solutions, again my excuse are:
too busy (I've got three little rugrats and still finishing off a new house…hence the want to build IT systems).
I take a long time to figure things out, research things as best I can before taking the plunge, etc...
But you're all absolutely correct. It's just a shame I bought it with the WIFI card thinking it could be an interim solution so I could swap out the ISP supplied rubbish, but I can't without WIFI working. Next temp solution, is to plug the ISP supplied rubbish into one of the spare LAN ports...