Hey everybody!!

I am new here and have spent about 2.5 hours looking for an answer to my question and still nothing, so I am going to ask it here.

We are on a network of computers and have used mIRC quite a bit but today, it's giving us problems. mIRC is up and connected, but when you type and send, the receiver can/does not receive it. The receiver can tell that something is being typed, but when the sender sends, nothing shows up. Has anyone had this issue before?