I was just working on a computer system in the office of a small business. I couldn’t update a virus removal software that used FTP. In addition Filezilla the FTP client they used for there website wouldn’t connect. In this case they had internet access, but I have seen situations where they didn’t. What was the cause? The over active firewall with there “internet security suite”. No matter who makes the software many have default settings that block many service you need. Try disabling the firewall and if everything now works you will need to find the exact hole you need to poke in your firewall and then restart it. If it still won’t work you can uninstall it completely, if that works use the windows firewall instead. You will still be protected, but will also be able to use your computer. If you can’t uninstall the firewall without the anti-virus uninstalling as well, consider switching to a new anti-virus software like AVG or Antivir it will be more effective with virus problems anyway, and they will let you use your computer.
