Hi, I'm not sure if this is a bug or not, maybe someone noticed it also... I always do a remote port forwarding with openssh on 1026 port let's say ( ssh -R 1026:localhost:55555 ). Most times the port is opened on remote machine. But sometimes i notice that ssh can't do remote port forwarding to that port 1026. I looked on the remote machine (netstat -an) and no one is using that port, so the port is free. Only way to fix this is do a remote port forwarding to another port lets say 1056, successfully done, then try again and do it for 1026, this time remote port forwarding successfully works... Sometimes it works if i try again with 1026, but other times i need to open another port then try again with 1026 port... What can cause this instability to remote port forwarding? Is there another command than "netstat -an" to see if that port is really free or something is using it? If is a bug can it be fixed? I use version of OpenSSH 5.1p1 on remote machine and the client is OpenSSH for Windows 3.8.1p1 Thanks in advance, Adriana