Internet suddenly stops working, problem with default gateway.

For the past few weeks I've been having this problem, the internet works fine and suddenly stops opening pages and disconnects me from any game I'm playing but it still says that it's connected.

This happens maybe 10 times a day and when it does happen, I run the 'Diagnose' on LAN adapter and it always finds the problem in default gateway ''Default Gateway Not Available'' and it says 'Fixed' but it happens again all the time.

I tried setting up static IP address, updating network drivers, running the program called '6to4remover' and some other things that I found on this site and none of them helped, the problem still persists.

I also called my ISP and they said that everything is alright at their end and that the connection is working as intended.

Here's the ipconfig/all if it helps.




Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\H>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : H-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : h1telekom.hr

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : h1telekom.hr
Description . . . . . . . . . . . : Qualcomm Atheros AR5007EG Wireless Network Adapter #2
Physical Address. . . . . . . . . : 00-15-AF-21-BB-FE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.1.41(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 16. listopada 2013. 22:30:52
Lease Expires . . . . . . . . . . : 17. listopada 2013. 22:30:52
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : h1telekom.hr
Description . . . . . . . . . . . : Atheros L1 Gigabit Ethernet 10/100/1000Ba
se-T Controller
Physical Address. . . . . . . . . : 00-1E-8C-BA-93-A0
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 192.168.1.21(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 17. listopada 2013. 5:36:31
Lease Expires . . . . . . . . . . : 18. listopada 2013. 5:36:31
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

C:\Users\H>

It appears that you are connected to your local network using a wired and a wireless connection.

Maybe you should disable the wireless connection and see how things work for you.

Don't you think it's a little strange how there is no tunnel adaptor or IPv6 information in the ipconfig?

I find it very strange, in fact this isn't right at all.

The 6 to 4 remover is my doing but since you don't have any tunnel adaptors it won't help.

Something has ripped the guts from this machine so we need to check for system file corruption, this assumes that you want the problem fixed.

I'd recommend doing an running the sfc /scannow command in an elevated command prompt.

Kaktussoft said:

Did you do Automating "6to4" Adapter Removal in Windows - RyanVictory.com ?? Why? It's unrelated to the problem. You're using tcp/ip v4.

It doesn't matter what he did with the 6 to 4 remover, when Windows is working correctly is will create a new tunnel adaptor automatically, in this case Windows is not working correctly.

The problem here is that the 6 to 4 tunnel adaptor and the IPv6 functionality has been ripped out of this system. This should be obvious by looking at the ipconfig. This problem should not occur unless there are other problems with the system.

It's likely the machine is also missing system files or even registry keys so it's best to pursue this problem with a system file scan.

Sorry for not answering, I forgot the password and had to remember what my email was.

'UsernameIssues' was correct, I was connected to both wireless and LAN so that must have caused issues, when I disconnected from wireless and disabled its adapter, the problem went away.

Thanks for answering everyone

Randoml12 said:

Sorry for not answering, I forgot the password and had to remember what my email was.

'UsernameIssues' was correct, I was connected to both wireless and LAN so that must have caused issues, when I disconnected from wireless and disabled its adapter, the problem went away.

Thanks for answering everyone

The IP's were valid but when Windows is working correctly the wired connection should automatically take over when both connections are active.

I still see bigger problems in the network stack here with the tunnel adaptors missing and no IPv6 information what so ever but if you want to ignore that obvious problem then good luck to you.

chev65 said:

Randoml12 said:

Sorry for not answering, I forgot the password and had to remember what my email was.

'UsernameIssues' was correct, I was connected to both wireless and LAN so that must have caused issues, when I disconnected from wireless and disabled its adapter, the problem went away.

Thanks for answering everyone

The IP's were valid but when Windows is working correctly the wired connection should automatically take over when both connections are active.

I still see bigger problems in the network stack here with the tunnel adaptors missing and no IPv6 information what so ever but if you want to ignore that obvious problem then good luck to you.

Yeah my bad, the problem is unfortunately back and I called my ISP today again and they suggested that I try with a new LAN cable and setting a static IP address but the problem still persists, sorry for not listening to you :P

Here's a new ipconfig/all so you can see the new settings, if you know how to fix this please help, it's driving me crazy

------------------------------
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\H>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : H-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Atheros L1 Gigabit Ethernet 10/100/1000Ba
se-T Controller
Physical Address. . . . . . . . . : 00-1E-8C-BA-93-A0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::14a4:6eaf:4f1a:9863%11(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.55(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 285220492
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-F1-80-BC-00-1E-8C-BA-93-A0

DNS Servers . . . . . . . . . . . : 80.80.50.3
80.80.50.43
NetBIOS over Tcpip. . . . . . . . : Enabled

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Qualcomm Atheros AR5007EG Wireless Networ
k Adapter
Physical Address. . . . . . . . . : 00-15-AF-21-BB-FE
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{DEFDF72B-74F6-4A60-A664-14B7EC54B3FA}:

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 Local Area Connection* 11:

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. . . . . . . . . . . : 2001:0:9d38:6abd:c7f:6a2:fad8:6254(Prefer
red)
Link-local IPv6 Address . . . . . : fe80::c7f:6a2:fad8:6254%12(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\H>

----------------------------

I also did sfc /scannow:

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>sfc /scannow

Beginning system scan. This process will take some time.

Beginning verification phase of system scan.
Verification 100% complete.

Windows Resource Protection did not find any integrity violations.

C:\Windows\system32>