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I installed VirtualBox on CentOS 6.0. Installed Windows 7 as a guest OS. Now it doesnt recognize the network card in the guest OS even after I installed guest additions. The network mode is NAT. Previously I tried bridged mode but that didn't work either. How do I resolve this?

vm info:

[root@sn ~]# VBoxManage showvminfo testvm
Name:            testvm
Groups:          /
Guest OS:        Windows 7 (64 bit)
UUID:            ef2de77b-67ba-42f9-b2f6-8a1a3a5c8adb
Config file:     /root/VirtualBox VMs/testvm/testvm.vbox
Snapshot folder: /root/VirtualBox VMs/testvm/Snapshots
Log folder:      /root/VirtualBox VMs/testvm/Logs
Hardware UUID:   ef2de77b-67ba-42f9-b2f6-8a1a3a5c8adb
Memory size:     1024MB
Page Fusion:     off
VRAM size:       8MB
CPU exec cap:    100%
HPET:            off
Chipset:         piix3
Firmware:        BIOS
Number of CPUs:  1
PAE:             on
Long Mode:       on
Synthetic CPU:   off
CPUID overrides: None
Boot menu mode:  message and menu
Boot Device (1): DVD
Boot Device (2): DVD
Boot Device (3): HardDisk
Boot Device (4): Not Assigned
ACPI:            on
IOAPIC:          on
Time offset:     0ms
RTC:             local time
Hardw. virt.ext: on
Nested Paging:   on
Large Pages:     off
VT-x VPID:       on
VT-x unr. exec.: on
State:           powered off (since 2014-06-25T00:44:24.000000000)
Monitor count:   1
3D Acceleration: off
2D Video Acceleration: off
Teleporter Enabled: off
Teleporter Port: 0
Teleporter Address: 
Teleporter Password: 
Tracing Enabled: off
Allow Tracing to Access VM: off
Tracing Configuration: 
Autostart Enabled: off
Autostart Delay: 0
Default Frontend: 
Storage Controller Name (0):            IDE Controller
Storage Controller Type (0):            PIIX4
Storage Controller Instance Number (0): 0
Storage Controller Max Port Count (0):  2
Storage Controller Port Count (0):      2
Storage Controller Bootable (0):        on
IDE Controller (0, 0): /root/VirtualBox VMs/testvm/testvm-disk03.vdi (UUID: ec572cb1-fc24-40da-a581-46f6eb4fe411)
IDE Controller (0, 1): /usr/share/virtualbox/VBoxGuestAdditions.iso (UUID: a30bd107-b2d9-48cc-b232-7bf2a4372389)
IDE Controller (1, 0): /tmp/win7.iso (UUID: a4e22aa8-fa5e-4dc6-8f41-e82377affeac)
NIC 1:           MAC: 080027CCF2B3, Attachment: NAT, Cable connected: on, Trace: off (file: none), Type: Am79C973, Reported speed: 0 Mbps, Boot priority: 0, Promisc Policy: allow-all, Bandwidth group: none
NIC 1 Settings:  MTU: 0, Socket (send: 64, receive: 64), TCP Window (send:64, receive: 64)
NIC 2:           disabled
NIC 3:           disabled
NIC 4:           disabled
NIC 5:           disabled
NIC 6:           disabled
NIC 7:           disabled
NIC 8:           disabled
Pointing Device: PS/2 Mouse
Keyboard Device: PS/2 Keyboard
UART 1:          disabled
UART 2:          disabled
LPT 1:           disabled
LPT 2:           disabled
Audio:           disabled
Clipboard Mode:  disabled
Drag'n'drop Mode: disabled
VRDE:            disabled
USB:             disabled
EHCI:            disabled

USB Device Filters:


Available remote USB devices:


Currently Attached USB Devices:


Bandwidth groups:  <none>

Shared folders:  <none>

VRDE Connection:    not active
Clients so far:     0

Video capturing:    not active
Capture screens:    0
Capture file:       /root/VirtualBox VMs/testvm/testvm.webm
Capture dimensions: 1024x768
Capture rate:       512 kbps
Capture FPS:        25


Configured memory balloon size:      0 MB

enter image description here

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migrated from Jun 25 '14 at 6:10

This question came from our site for system and network administrators.

File a bug report. – Iain Jun 25 '14 at 6:10
Still seeing this issue... – Freedom_Ben Aug 9 '14 at 18:17

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