iTunes 11.0.2 no longer connecting to Remote app on iPhone; claims password is incorrect or takes forever verifying.

iTunes on my mid 2011 iMac is not connecting to my iPhone 5 nor my iPad 1st gen "Remote" app. Homesharing is enabled on all devices, yet my library cannot be found. I made sure all of the devices had homesharing turned on. I tried manually adding the library, and when I entered the code displayed on my iPhone into iTunes, it either said it was incorrect or timed out in the verification process. This is really frustrating as it has worked before, and suddenly doesn't work. By the way, I have made no changes in my WiFi network or routers. Please help, thanks!