[moltuae]

Originally Posted by ulfilias

I'm generally not a huge Wifi fan and prefer a wired connection if possible, but no obvious cable route for that.

A wired connection is always the best option, if practical. And, for my business customers, wired Ethernet is always my first choice. When a wired connection is not possible, my second choice would be powerline adaptors and WiFi last. For the latter, UniFi make what are probably the best business-grade wireless access points you can buy. A single UniFi Pro WAP will easily cover most houses, but you can add a second or third unit if you want consistent coverage without any cold-spots. If it's difficult/impractical to run an Ethernet cable out to the UniFi WAPs, you can plug them into powerline adaptors instead (I have a few installations like this and it works quite well).

Powerline adaptors will only work on the same electrical phase so it can be a problem getting them to work in factories, where it's common to have multiple phases. If the individual phases come together at some point, such as at an electrical distribution board, you can use multiple powerline adaptors to 'step across' the phases. What you essentially have to do it create a link, using two additional powerline adaptors, with an ethernet cable between them -- one adaptor plugged into one of the phases and the second adaptor on the other.