Seeing as the entire civilized world is dependent on a solid internet connection 24/7, your vacation rental's WiFi is an extremely important amenity. Having a weak connection can easily knock points off of your reviews. So, if you've got dead spots, or frequent disconnects, or just need to speed things up, check out the WiFi guide.
I began compiling this information after having to fix a dead spot in one of my rooms. As it turns out, 2.4ghz signals may be slower than 5ghz, but they travel through dense surfaces like concrete much better. Stuff like this can make a significant difference to your signal strength!