Default gateway not available

IronSand · 30 Nov 2010

Hello,

First of all, if this thread is in wrong place, I am sorry.

My problem is that I lose my internet connection frequently. When I troubleshoot for problems, I get "Default gateway not available." I have to manually disconnect and reconnect to the network.

I have installed the latest drivers. It didn't work. Therefore, I have uninstalled every driver, reboot and let windows install the drivers. It still doesn't seem to work. I have enable IPv6, too. It doesn't seem to work as well.

ipconfig file

Code:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : THINK
   Primary Dns Suffix  . . . . . . . : 
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : odu.edu

Wireless LAN adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . : odu.edu
   Description . . . . . . . . . . . : Intel(R) WiFi Link 1000 BGN
   Physical Address. . . . . . . . . : 00-26-C7-59-61-50
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::4c3e:a72c:7b6b:5993%29(Preferred) 
   IPv4 Address. . . . . . . . . . . : 172.23.48.168(Preferred) 
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Lease Obtained. . . . . . . . . . : Tuesday, November 30, 2010 5:12:02 PM
   Lease Expires . . . . . . . . . . : Tuesday, November 30, 2010 6:12:01 PM
   Default Gateway . . . . . . . . . : 172.23.48.1
   DHCP Server . . . . . . . . . . . : 1.1.1.1
   DHCPv6 IAID . . . . . . . . . . . : 486549191
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-FB-8E-EA-F0-DE-F1-09-65-A0
   DNS Servers . . . . . . . . . . . : 192.168.100.153
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : 
   Description . . . . . . . . . . . : Intel(R) 82577LM Gigabit Network Connection
   Physical Address. . . . . . . . . : F0-DE-F1-09-65-A0
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter VirtualBox Host-Only Network:

   Connection-specific DNS Suffix  . : 
   Description . . . . . . . . . . . : VirtualBox Host-Only Ethernet Adapter
   Physical Address. . . . . . . . . : 08-00-27-00-D8-A0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::a9a8:be01:eca2:55fd%18(Preferred) 
   IPv4 Address. . . . . . . . . . . : 192.168.56.1(Preferred) 
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 
   DHCPv6 IAID . . . . . . . . . . . : 503840807
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-FB-8E-EA-F0-DE-F1-09-65-A0
   DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.odu.edu:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : odu.edu
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{07DAE8DB-33BA-4559-AC28-FA49E0A4DDF3}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : 
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 13:

   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 isatap.{94188DF0-BB00-438E-8BAE-C439FA4CC64E}:

   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

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Media State . . . . . . . . . . . : Media disconnected
   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

Tunnel adapter isatap.{6D47FAE8-B09D-4E2C-B773-D7B54AB43AB1}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : 
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #4
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

I have searched internet too much and I found people with the same problem on this forum. People said that everyone should make own thread rather than asking in others' threads. So, here it is!

Thanks.

brady · 30 Nov 2010

disable IPV6 -- forever :P

Set static IP for default adapter... That gateway-less adapter is for your VirtualBox... it will grab standard default gateway

IronSand · 30 Nov 2010

Thanks for the reply and I will just uninstall Virtualbox. I will wait for about a day to see if that works.

IronSand · 01 Dec 2010

I know what the problem was. I was using university internet and it was set to public network. So, I set it to Home network and all the problems seem to have gone now.

Thanks.

chev65 · 01 Dec 2010

brady said:

disable IPV6 -- forever :P

Set static IP for default adapter... That gateway-less adapter is for your VirtualBox... it will grab standard default gateway

That would not be a wise move and can actually cause problems with networking.
The misconceptions about IPv6 need to go the way of the dinosaurs.

The Argument against Disabling IPv6
It is unfortunate that some organizations disable IPv6 on their computers running Windows Vista or Windows Server 2008, where it is installed and enabled by default. Many disable IPv6-based on the assumption that they are not running any applications or services that use it. Others might disable it because of a misperception that having both IPv4 and IPv6 enabled effectively doubles their DNS and Web traffic. This is not true.
From Microsoft's perspective, IPv6 is a mandatory part of the Windows operating system and it is enabled and included in standard Windows service and application testing during the operating system development process. Because Windows was designed specifically with IPv6 present, Microsoft does not perform any testing to determine the effects of disabling IPv6. If IPv6 is disabled on Windows Vista, Windows Server 2008, or later versions, some components will not function. Moreover, applications that you might not think are using IPv6—such as Remote Assistance, HomeGroup, DirectAccess, and Windows Mail—could be.
Therefore, Microsoft recommends that you leave IPv6 enabled, even if you do not have an IPv6-enabled network, either native or tunneled. By leaving IPv6 enabled, you do not disable IPv6-only applications and services (for example, HomeGroup in Windows 7 and DirectAccess in Windows 7 and Windows Server 2008 R2 are IPv6-only) and your hosts can take advantage of IPv6-enhanced connectivity.

Read more. http://technet.microsoft.com/en-us/m....cableguy.aspx