I've tried twice now to link my entire house together in Shipley (NW corner). When I press Ctrl+L nothing, happens...so impatiently I press it a couple of more times and the entire Sim goes down. First I thought it had nothing to do with me, but this happened twice in a row when I was doing the exact same thing (1 hour between or so).
I'm not going to try it once more (don't want to crash the Sim more than needed). But I think this might be a bug.
Danny