@leetut: I experience that WinSCP error too, just not as consistently as you seem to. At home, I connect to my basic Linksys Wireless G router and utilize WPA-PSK authentication and DHCP, and I have had no problems at all with WinSCP/SSH. At work, we have Cisco WAPs that provide coverage throughout the building, and I set them up with WEP-PSK authentication, and I use a static IP address. At work is where I experience the Network Error: Connection refused on an inconsistent basis. WinSCP will work for a few minutes, then I'll get the error. Sometimes if I close WinSCP and re-open, it won't let me reconnect, sometimes it will let me. Sometimes if it won't connect, I just wait a minute or two, and then it will connect. Strange. It's not a signal strength issue, because I'll be right next to the AP. It's not a static IP issue, because I switched to DHCP just to check. It's not a general connectivity issue, because I can ping both ways even when getting the error. I'll be doing some further troubleshooting to try and figure out what my particular issue is, but you may want to try connecting through a different wireless router or change your wireless authentication method to see if its your router or its setup that may be the source of your issues.