Virtual Box: Ubuntu and OpenSUSE internet connection requiring certificates
 

I am currently having a problem regarding internet connection with the Ubuntu and OpenSUSE in my VirtualBox. The problem is that the internet connection requires a certificate to be downloaded. I can do this on my Windows and download the certificate and connect, but even though I have bridged connection with my Inter Wifi link 5100 between Windows and the Linux virtual machines. Both of the Linux operating systems do not connect. I have tried to export the certificate from my Windows operating system to the Linux Machines, but the certificate is non compatible with Linux.