Music>More>Shared does not appear and the password has been set up properly on all devices. What is wrong with Home Sharing?

Really I can't believe how pathetic Apple products are at allowing people under the hood of certain settings or giving you some clue to what error messages mean. My password is entered properly on all devices I'm trying to use Home Sharing on, all check boxes are checked yet the iPad still cannot discover what is on the PC's iTunes list. I've tried everything in all of the forums on this site and nothing works, there is no Music>More>Sharing box that pops up. Also there is no Airplay button in my iTunes on my PC. Does anyone have any suggestions?