All Send control key doesn't not working

Anybody please help.

Now I’m working in terminal, I have already tested more key in list activity of send control key. Send control key does work if getting validate from my session (using as400). In this scenario. I’m finding card number using wrong card number. It’s getting message ‘Invalid account/card number’. That’s way my activity will timeout after I put transmit key.

Can anyone please help me on this case. Thank you