No internet connection

The ethernet adapter media is disconnected ,, can someone please help me fix the problem i can't connect to the internet

system info:

Host Name:                

OS Name:                   Microsoft Windows 8 Pro

OS Version:                6.2.9200 N/A Build 9200

OS Manufacturer:           Microsoft Corporation

OS Configuration:          Standalone Workstation

OS Build Type:             Multiprocessor Free

Registered Owner:         

Registered Organization:  

Product ID:               

Original Install Date:     01/02/2014, 16:25:52

System Boot Time:          03/07/2015, 17:31:00

System Manufacturer:       Gigabyte Technology Co., Ltd.

System Model:              To be filled by O.E.M.

System Type:               X86-based PC

Processor(s):              1 Processor(s) Installed.

                           [01]: x64 Family 6 Model 58 Stepping 9 GenuineIntel ~3400 Mhz

BIOS Version:              American Megatrends Inc. FC, 02/25/2013

Windows Directory:         C:\Windows

System Directory:          C:\Windows\system32

Boot Device:               \Device\HarddiskVolume1

System Locale:             he;Hebrew

Input Locale:              en-us;English (United States)

Time Zone:                 (UTC+02:00) Athens, Bucharest

Total Physical Memory:     3,564 MB

Available Physical Memory: 2,851 MB

Virtual Memory: Max Size:  4,204 MB

Virtual Memory: Available: 3,251 MB

Virtual Memory: In Use:    953 MB

Page File Location(s):     C:\pagefile.sys

Domain:                    WORKGROUP

Logon Server:              

Hotfix(s):                 138 Hotfix(s) Installed.

                           [01]: KB2712101_Microsoft-Windows-CameraCodec-Package

                           [02]: KB2727528

                           [03]: KB2737084

                           [04]: KB2742614

                           [05]: KB2756872

                           [06]: KB2757638

                           [07]: KB2758246

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Network Card(s):           1 NIC(s) Installed.

                           [01]: Realtek PCIe GBE Family Controller

                                 Connection Name: Ethernet

                                 Status:          Media disconnected

Hyper-V Requirements:      VM Monitor Mode Extensions: Yes

                           Virtualization Enabled In Firmware: No

                           Second Level Address Translation: Yes

                           Data Execution Prevention Available: Yes