First, make sure that your security program and Windows Firewall doesn't block the software connection. Also, go to Start, type Windows Firewall with Advanced Security and open the utility. Navigate to Inbound Rules > New Rule, check the Port box, click Next, select All local Ports and follow the self-explained steps. If the problem is not solved, go to Panasonic Downloads page, scroll down to PHOTOfunSTUDIO section and download and install the latest update.