Error when trying to ssh

When I ssh into my office computer, everything goes fine (except I can't scp from it). When I try to ssh into my home computer from the office, I get the following error: ssh_exchange_identification: Connection closed by remote host lost connection I get this error when I try to scp a file from work to home (while at home). I used to be able to do it. I didn't screw with anything (that I'm aware of). Everything's running that's supposed to be. Any thoughts? Thanks! --- Tom Nielsen Neuro Logic Systems, Inc. 805.389.5435 x18 www.neuro-logic.com