Cannot change active network from public to home in Windows 7
Hello. I have a home network connected through an Ethernet switch, which uses ICS through one of the computers (host - 192.168.0.1) via a wireless broadband card. Until recently the host computer was running XP and all was well. (Two of PCs on the network are W7.) I have upgraded the host computer to W7 and things are not so happy. My home network is now showing as a public network and W7 will not allow me to change it. I have read in the forums that W7 sees it as an unidentified network, seemingly because there is no default gateway set. I have tried to set the default gateway to 192.168.0.1, but it ignores my input (doesn't save) and I end with a default gateway of 0.0.0.0. I have tried a couple of things from this thread: http://social.technet.microsoft.com/Forums/en/w7itpronetworking/thread/878f7c4f-f287-4c75-a708-a2097f931435 I tried this from Reckless Dane: DISABLE ALL NETWORK ADAPTERS ENABLE THE ADAPTER THAT'S ONLY SHOWING UP THE UNCHANGEABLE PUBLIC NETWORK IN THE NETWORK AND SHARING CENTER, SELECT "CHOOSE HOMEGROUP AND SHARING OPTIONS" CLICK ON "WHAT IS THIS LOCATION?" SELECT HOME/WORK RE-ENABLE ALL OTHER ADAPTERS When I select "CHOOSE HOMEGROUP AND SHARING OPTIONS" there is no option or button that says "WHAT IS THIS LOCATION?" It just says "The Homegroup is not available because you're not connected to the home network." I also tried: Run secpol.msc Select Network List Manager Policies Set Unidentified network policies to "user can change location" and the location to "private" And this did change the Network type to "Work," but if still says I'm not connected to home network and it still won't let me change the default gateway. Below is my IPCONFIG. Any help would be greatly appreciated (as frustration level is high. I was really hoping that W7 would actually let me control my PC after struggling with Vista.) Microsoft Windows [Version 6.1.7600] Copyright (c) 2009 Microsoft Corporation. All rights reserved. Windows IP Configuration Host Name . . . . . . . . . . . . : Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No PPP adapter CDMA: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : CDMA Physical Address. . . . . . . . . : DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 173.139.144.177(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.255 Default Gateway . . . . . . . . . : 0.0.0.0 DNS Servers . . . . . . . . . . . : 68.28.178.91 68.28.186.91 NetBIOS over Tcpip. . . . . . . . : Disabled Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connection Physical Address. . . . . . . . . : 00-1B-FC-B5-0E-47 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.0.1(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 0.0.0.0 DNS Servers . . . . . . . . . . . : 192.168.0.1 68.94.156.1 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter Reusable Microsoft 6To4 Adapter: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft 6to4 Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2002:ad8b:90b1::ad8b:90b1(Preferred) Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301 DNS Servers . . . . . . . . . . . : 68.28.178.91 68.28.186.91 NetBIOS over Tcpip. . . . . . . . : Disabled Tunnel adapter Teredo Tunneling Pseudo-Interface: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e74:2092:2574:5274:6f4e(Pref erred) Link-local IPv6 Address . . . . . : fe80::2092:2574:5274:6f4e%12(Preferred) Default Gateway . . . . . . . . . : NetBIOS over Tcpip. . . . . . . . : Disabled Tunnel adapter 6TO4 Adapter: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft 6to4 Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter Local Area Connection* 8: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft 6to4 Adapter #2 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{3DE5F941-A9BE-4DAA-910E-1A71D0913E2B}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter isatap.{CF3C1854-45D0-4159-BEDB-854A6B6995EC}: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3 Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes
May 18th, 2010 12:52am

All those Windows gurus out there and no one is going to even attempt to help me?
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May 19th, 2010 12:52am

That does not make any sense. Win 7 does not use 192.168.0.0/24 for ICS. It uses 192.168.137.0/24 The subnet was changed to avoid conflict with ADSL routers which use 192.168.0.0 . How did you enable ICS? Bill
May 19th, 2010 2:06am

Hi Bill. Thanks for the response. To enable ICS I just went into Change Adapter Settings for my broadband adapter, went to the Sharing tab and selected allow other computers to access the internet through this computer. I believe it then gave the standard message that it was resetting the IP address of my LAN adapter; I don't recall what specific address it said or if it gave one. I do know that I checked the LAN address after this and it was set to the typical 192.168.0.1/255.255.255.0 address. All the IP addresses on my network at static - manually set. Should I reset the address on the host to something other than what is shown above. Don't know that it makes any difference but all the PCs on my network can access the internet through the host, but the host still says there is no home network. btw - it sounds like networking in W7 has changed a bit; is there a good primer somewhere?
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May 19th, 2010 12:55pm

Well sometimes I stump my IT department but I'm surprised I can stump this august body. No one has any suggestions?
May 20th, 2010 2:13pm

If you manually configured your local network while you were using ICS on XP, that explains the 192.168.0.0/24 subnet. Windows 7 ICS uses 192.168.137.0/24. I am a bit surprised that it works at all with 192.168.0.0 Why don''t you buy a simple ADSL NAT "router"? ICS is a pain at the best of times. I don't know why the secpol changes did not set your internal network to private. You can't configure a default gateway on the internal NIC of the host because this interface is itself the default gateway for your home network. Bill
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May 21st, 2010 4:55am

Thanks Bill. I'm going to try to delete everything; see if I can get the home network going; and then try to add the broadband connection back in. If all fails I will look into a router.
May 21st, 2010 3:45pm

This annoying "feature" is also present in Windows Server 2008 and needs to be fixed pronto. I'm was trying to configure a RRAS router on my Hyper-V server and the stupid piece of crap was insisting that the local area connection is an "unidentified network" because it has a fixed IP (10.1.1.x/24) with no default gateway. My PPPoE connection to the big bad Internet is fine though because it is "identified" so I can set it to private...wonderful. My initial work around was to set public interfaces as "Private" and import the settings as rules from the existing "Public" interfaces and then turn off the public firewall rules. The other (better) option is to attach the interface to an el cheapo home router with DHCP etc... let it identify change the network type to private then disconnect it and revert the IP settings to what they should be. There should be some other way of doing this even if it's from a command line. Steve Buckley "Network" seems to be entirely based on "Default Gateway" setting. As soon as you remove or change it then the adaptor drops out of your allocated group. This feature REALLY sux if you are building a Windows based router.
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April 25th, 2011 1:54pm

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