Network adapter error in Windows erver 2012 Installed on Virtual Box

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http://serverfault.com – I installed Windows Server 2012 yesterday on a virtual box, Network adapter not found, I updated my virtual box to latest version and installed guest additionals still same problem I re started it and tried changing NAT to different options still got same error. I tried enabling 4 of 4 adapters, still same problem atm I got Windows server 2003 VPC, Windows 7 VPC they all got internet without any additionals why am I having a trouble with 2012 server + I just need to setup a static IP dont care about internet. (HowTos)