My Messenger isn't working on iphone, ipad or mac.why

Yes I know I have way too many Apple products but that's not the point.
I can log in to my messenger on any of them but I don't receive messages nor do they receive mine.
I get the notifications of a new message on my phone but when I open the app, it doesn't appear. What can I do? I've tried re-downloading on my computer and deleting and re-downloading on my phone. Nothing worked.

  • Whatsapp messenger, not working? I'm so confused. It was working fine and now for like 3 days the messenger sends the message but only has a single check mark. Never two. I don't think i'm able to send any outgoing msgs or receive any either. i tried reinstalling. I tried rebooting. Its not working. Anyone else having issues? i'm on my iphone 4s I wonder, if they are having issues with their phone or the app isn't working.
  • My Kik Messenger isn't working? I have an iPhone 4S and about a week ago, the connection began to fail. I continue to receive incoming messages but I can't really look at them and if I reply it has the usual "." 3 dots that lets you know there's no connection reply back and then I get a "!" Exclamation point. At this point, I don't know what to do. Can anyone help?
  • Imessage. Can send image from iphone to mac but not mac to iphone? What's going on? Try to send image from mac and error saying "04******** can't receive file transfers"
  • I've been using my iPhone on my Mac, but my Mac's busted. Can I use it with the iTunes on my PC? I had a MacBook pro which has had problems. Luckily I have a new PC with iTunes on it. What happens when I connect my iPhone to the PC and try and Sync music or update the software? Will it work?