For weeks now when I try to send a message most times it sends fine but every now and then the message won't send. I'll get a note saying message not sent. When I retry I'll sometimes need 3 or 4 efforts to get it to go. This is with both hangouts and the built in messaging app. Sometimes rebooting helps. Fido thought it was my Sim card but a new one didn't help. It doesn't matter if it's on WiFi or data. I'm wondering if it's a hardware issue? Please help.