Change Unidentified Network from public in windows 7 – ServerOK

After upgrading Main computer (one that connect to DSL modem) on LAN, other PC’s are able to get internet. But failed to ping on 192.168.0.1.

Method 1

Go to

1

Start

>

Search

>

secpol

.

msc

Navigate to

1

Network

List

Manager

Policies

>

Unidentified

Networks

Double Click and Change Location Type to

1

Private

Warning This means from now on all Unidentified Networks will be set as private!!

Method 2

NOTE: This is temporary solution, on rebooting, changes will be lost

This is caused by Network card that connect to lan with IP 192.168.0.1 is assigned as a “Public Network”. Public Network have many features disabled for security.

To fix this, run “ChangeCategory.psl” on Power Shell running as Administrator.

Copy and paste following content to a text file, save it as ChangeCategory.psl

1

2

3

4

5

6

7

8

9

10

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12

13

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15

16

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20

$

NLMType

=

[

Type

]

:

:

GetTypeFromCLSID

(

‘DCB00C01-570F-4A9B-8D69-199FDBA5723B’

)

$

INetworkListManager

=

[

Activator

]

:

:

CreateInstance

(

$

NLMType

)

 

$

NLM_ENUM_NETWORK_CONNECTED

  

=

1

$

NLM_NETWORK_CATEGORY_PUBLIC

=

0x00

$

NLM_NETWORK_CATEGORY_PRIVATE

=

0x01

$

UNIDENTIFIED

=

“Unidentified network”

 

$

INetworks

=

$

INetworkListManager

.

GetNetworks

(

$

NLM_ENUM_NETWORK_CONNECTED

)

 

foreach

(

$

INetwork

in

$

INetworks

)

{

    

$

Name

=

$

INetwork

.

GetName

(

)

    

$

Category

=

$

INetwork

.

GetCategory

(

)

 

    

if

(

$

INetwork

.

IsConnected

–

and

(

$

Category

–

eq

$

NLM_NETWORK_CATEGORY_PUBLIC

)

–

and

(

$

Name

–

eq

$

UNIDENTIFIED

)

)

    

{

        

$

INetwork

.

SetCategory

(

$

NLM_NETWORK_CATEGORY_PRIVATE

)

    

}

}

Now run power shell as administrator.

Type

1

2

set

–

executionpolicy

remotesigned

ChangeCategory

.

ps1

This should be done in folder where ChangeCategory.ps1 is saved.

After doing this, Network and Sharing Center will show

Windows Firewall will show “undefined network” in “Home or work (private) networks”. Being in private network, you get privileges to share, ping etc…

See Windows