Shoutbox

Hi, I've spent a while trying to find a solution or someone with a similar problem as this but couldn't, so here goes:

Sometimes when I send somebody a message it doesn't go through. A while later they message me "You there?"... and I reply "Yes, I just messaged you"... and they say they haven't received anything.

This happens some of the time with all my contacts. I do NOT get any error messages or anything. It happens randomly.

It seems as if the messages get dropped along the way. Is this a software, connection or Microsoft server issue?

Thanks