Hello,
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I would suggest you to turn off Windows Firewall and check. Refer to the link below:
Turn Windows Firewall on or off
If disabling the firewall doesn’t work, then try disabling the antivirus.
Disable anti-virus software
http://windows.microsoft.com/en-US/windows7/Disable-antivirus-software
Important Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.
If disabling the firewall works, then add the Epson program to the Windows Firewall exceptions list. Follow the steps below:
- Press the "Start" menu at the bottom of your computer screen to display the Start menu. Choose "Control Panel" from the right side of the Start menu. The Control Panel window will open up onto the desktop.
- Double-click on the "Windows Firewall" icon from the Control Panel. The Windows Firewall dialog box will open.
- Choose the "Exceptions" tab at the top of the Windows Firewall dialog box (if necessary).
- Click the "Add Program" button at the bottom of this list to open the Add a Program dialog box.
- Click on the “browse” button and browse to the location below and add it as an exception: C:\WINDOWS\twain_32\escndv\escndv.exe
- Click the "OK" button to close the Add a Program dialog box and add the selected program as an exception
For reference:
Help: Add a program to the Windows Firewall exceptions list
http://technet.microsoft.com/en-us/library/cc736438(v=WS.10).aspx
Hope this information is helpful and do let us know if you need further assistance. We will be glad to help.
Thank you.