Installed Loopback Adapter but no network connection

[Guest]

Hi,

I already have a network connection to the internet via another adapter,
this is "Local Area Connection". I installed Microsoft Loopback Adapter in
order to install Oracle. But there is no new connection in the Network
Connections control panel. The only one there is "Local Area Connection"
which was there before.

ipconfig /all gives this:
-------------------------------------------------------------------------------
Windows IP Configuration
Host Name . . . . . . . . . . . . : AMD
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Belkin

Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : VIA Rhine II Fast Ethernet Adapter
Physical Address. . . . . . . . . : 00-14-2A-4B-0E-4D
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.2.4
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DNS Servers . . . . . . . . . . . : 192.168.2.1
Lease Obtained. . . . . . . . . . : Tuesday, 18 April 2006 7:26:16 PM
Lease Expires . . . . . . . . . . : Tuesday, 22 March 1904 2:35:03 AM

Ethernet adapter {43FDAE72-1DE2-4F46-9CF5-FE57F13CC8E7}:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Loopback Adapter
Physical Address. . . . . . . . . : 02-00-4C-4F-4F-50
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.25.129
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

 

[Steve Winograd [MVP]]

Hi,

I already have a network connection to the internet via another adapter,
this is "Local Area Connection". I installed Microsoft Loopback Adapter in
order to install Oracle. But there is no new connection in the Network
Connections control panel. The only one there is "Local Area Connection"
which was there before.

ipconfig /all gives this:
-------------------------------------------------------------------------------
Windows IP Configuration
Host Name . . . . . . . . . . . . : AMD
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : Belkin

Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : Belkin
Description . . . . . . . . . . . : VIA Rhine II Fast Ethernet Adapter
Physical Address. . . . . . . . . : 00-14-2A-4B-0E-4D
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.2.4
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.2.1
DHCP Server . . . . . . . . . . . : 192.168.2.1
DNS Servers . . . . . . . . . . . : 192.168.2.1
Lease Obtained. . . . . . . . . . : Tuesday, 18 April 2006 7:26:16 PM
Lease Expires . . . . . . . . . . : Tuesday, 22 March 1904 2:35:03 AM

Ethernet adapter {43FDAE72-1DE2-4F46-9CF5-FE57F13CC8E7}:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Loopback Adapter
Physical Address. . . . . . . . . : 02-00-4C-4F-4F-50
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.25.129
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :

It looks like something is wrong with the Loopback Adapter on your
computer. On my computer, it appears as "Local Area Connection 2" in
Network Connections and in the Ipconfig output. Your computer shows
it as "{43FDAE72-1DE2-4F46-9CF5-FE57F13CC8E7}" in the Ipconfig output.

I'd try this:

1. Start Windows XP in Safe mode.
2. Go to Device Manager
3. Click View | "Show hidden devices".
4. Un-install everything related to the Loopback Adapter.
5. Start Windows XP in normal mode.
6. Re-install the Loopback Adapter.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

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