Sometimes this can happen due to a proxy or firewall connection. If that isn't the issue, then you can try to make a change that will use a different method of checking inet connectivity.
Locate the config.xml in your /System folder inside your settings (C:\ProgramData\Centrafuse\Centrafuse Auto\<Windows user>\System)
Open the config.xml file in a text editor like Notepad and edit this line: <INTERNETURL></INTERNETURL>
Modify it by adding a site such as www.google.com inside, such as: <INTERNETURL>www.google.com</INTERNETURL>