Windows 8 and 8.1 Forums


Windows 8 - Default Gateway Not Avail

  1. #1


    Posts : 10
    Windows 8

    Windows 8 - Default Gateway Not Avail


    I have seen similar threads but nothing there has worked... (The option to turn the wifi off to save power is unchecked.)

    I just got a new laptop (Samsung Ativ 7) and it worked great for a week on the router I have at home. I just moved into university housing and the wifi seemed to work for about a day, but since then (about 3 days now) it continuously disconnects from the internet. Like every 30 seconds... It's bad. If I'm lucky I'll get a few minutes, though strangely the problem seems to be getting worse each day and my time online seems to be getting shorter each day.

    When I run the troubleshooter, it says the default gateway is not available and "fixes" the problem, which lasts for a few seconds/minutes before it reverts. Every now and then the problem will be "Wi-Fi doesn't have a valid IP configuration." That problem gets "fixed" and the internet never works, instead I have to trouble shoot again to see the gateway one, then I get a little bit of wifi. Lately I have to run troubleshooter multiple times before I get any results.

    I think I'm having DNS issues, but what the cause or the solution is, I do not know... The lease is always listed for about 5 minutes (though I don't always make it that far) and when I try to connect the college VPN service, it says "Limited Access - DNS Failure."

    My IPConfig info is below. Please let me know if I can do anything else to help

    Microsoft Windows [Version 6.2.9200]
    (c) 2012 Microsoft Corporation. All rights reserved.


    C:\windows\system32>ipconfig /all


    Windows IP Configuration


    Host Name . . . . . . . . . . . . : Spot
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : XXXXXXXXXXXXXXX


    Ethernet adapter Ethernet 2:


    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Cisco AnyConnect Secure Mobility Client V
    irtual Miniport Adapter for Windows x64
    Physical Address. . . . . . . . . : 00-05-9A-3C-7A-00
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes


    Wireless LAN adapter Local Area Connection* 13:


    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Hosted Network Virtual Adapter
    Physical Address. . . . . . . . . : B6-B6-76-7E-A4-AB
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes


    Wireless LAN adapter Local Area Connection* 12:


    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Wi-Fi Direct Virtual Adapter
    Physical Address. . . . . . . . . : B4-B6-76-7E-A4-AB
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes


    Ethernet adapter Ethernet:


    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : 18-67-B0-47-9D-4D
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes


    Wireless LAN adapter Wi-Fi:


    Connection-specific DNS Suffix . : XXXXXXXXXXXXXXX
    Description . . . . . . . . . . . : Intel(R) Centrino(R) Advanced-N 6235
    Physical Address. . . . . . . . . : B4-B6-76-7E-A4-AA
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::ac9e:bf5b:f896:9502%12(Preferred)
    IPv4 Address. . . . . . . . . . . : 10.220.245.97(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.248.0
    Lease Obtained. . . . . . . . . . : Monday, September 2, 2013 10:01:00 PM
    Lease Expires . . . . . . . . . . : Monday, September 2, 2013 10:06:00 PM
    Default Gateway . . . . . . . . . : 10.220.240.1
    DHCP Server . . . . . . . . . . . : 140.247.233.194
    DHCPv6 IAID . . . . . . . . . . . : 264537352
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-6B-D4-8F-18-67-B0-47-9D-4D


    DNS Servers . . . . . . . . . . . : 140.247.233.163
    140.247.233.194
    128.103.1.7
    Primary WINS Server . . . . . . . : 10.255.16.161
    Secondary WINS Server . . . . . . : 10.255.16.162
    NetBIOS over Tcpip. . . . . . . . : Enabled


    Tunnel adapter isatap.XXXXXXXXXXXXXXX:


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


    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. . . . . . . . . . . : 2001:0:9d38:6ab8:2c6d:1552:7308:4494(Pref
    erred)
    Link-local IPv6 Address . . . . . : fe80::2c6d:1552:7308:4494%18(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled


    C:\windows\system32>

      My System SpecsSystem Spec

  2. #2


    England, Northamptonshire
    Posts : 536
    Windows 8.1 Pro 64-bit ; Windows Server 2012 R2 Standard


    Your IP configuration looks fine. Your DNS servers may be the issue but first can I ask, when you get disconnected what happens to the network icon in the system tray? Does it have a Warning symbol next to it? Or do you get completely disconnected?

    Lastly, do you know roughly how many people are using the network? And for testing purposes only, can you try to temporarily disable your Anti-Virus and firewall and see if you get dropped out at all?

    Many Thanks,
    Josh
      My System SpecsSystem Spec

  3. #3


    Posts : 10
    Windows 8


    I get the warning message when I'm booted - the little exclamation mark thing. Turning off firewall (Windows) and antivirus (Avast) did nothing to help. I do not know how many people are on the network, but it works just fine with my old computer and cell phone. It's in a major university that would certainly have enough capacity for the area, though... Any other tests I can run or anything I can try? Does the "media offline" stuff concern you?
      My System SpecsSystem Spec

  4. #4


    England, Northamptonshire
    Posts : 536
    Windows 8.1 Pro 64-bit ; Windows Server 2012 R2 Standard


    Hmmm, the media offline shouldn't be related to this issue. When you get booted can you open a command prompt and type the following:

    Code:
    ping www.google.com
    Press enter and let the ping complete. Once done please then type the following:

    Code:
    ping 173.194.41.115
    Press enter and let the ping complete. Once all are done please upload your results so that we can see if DNS is a potential cause.

    Josh
      My System SpecsSystem Spec

  5. #5


    Posts : 10
    Windows 8


    I restarted, and as soon as the computer booted I typed those things. Results are below:

    1st) "request timed out" 4 times in a row. Packets sent = 4, received =0, lost =4 (100% loss)
    2nd) "request timed out" 4 times in a row. Packets sent = 4, received =0, lost =4 (100% loss)

    But the strange thing is that it shows me connected to the internet, Avast! updated, AND I can load web pages... Weird.
      My System SpecsSystem Spec

  6. #6


    England, Northamptonshire
    Posts : 536
    Windows 8.1 Pro 64-bit ; Windows Server 2012 R2 Standard


    I have a hunch that some third party application on your machine is causing this. Since the issue is linked only with this machine.

    Can you boot your machine into safe mode with networking and test connectivity.

    Follow this tutorial (OPTION THREE ONLY) - Safe Mode - Start Windows 8 in

    Note   Note
    Please replace all references of 'Safe Mode' with 'Safe Mode with Networking'


    Please post back your results and then we can troubleshoot from there

    Many Thanks,
    Josh
      My System SpecsSystem Spec

  7. #7


    Posts : 10
    Windows 8


    I couldn't get F8 to work, so I did I rebooted from the MSConfig box - checking to go into safe + network mode. The internet did not connect though. Is it possible I'm not in network mode? I told it to reboot in safe and I checked the box that says "network" right below it. Any other way to get F8 to work better maybe?
      My System SpecsSystem Spec

  8. #8


    Posts : 10
    Windows 8


    Ok now it seems to work (still got there through msconfig), but both ping requests are still timing out. Strangely enough, I can also still load a webpage like ESPN even though I'm timing out the pings
      My System SpecsSystem Spec

  9. #9


    England, Northamptonshire
    Posts : 536
    Windows 8.1 Pro 64-bit ; Windows Server 2012 R2 Standard


    My guess is that your Uni is blocking ICMP requests out. Did you ever get disconnected while in Safe Mode?

    Josh
      My System SpecsSystem Spec

  10. #10


    Posts : 10
    Windows 8


    The connection still drops, even in safemode... On my old computer (too big to be portable, but I brought it anyway for dorm stuff) I was able to ping a few days ago. Today I can't though for some reason, but it did work at one point while the windows 8 machine was unable to. No problems at all on the windows 7 machine, but windows 8 is still having issues even with safemode...
      My System SpecsSystem Spec

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Windows 8 - Default Gateway Not Avail
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