I know there are multiple threads on this issue, but it's difficult to sort through all the recommendations and configurations to find out what the appropriate fix is for the issue. My internet connection randomly drops during use and when I come back to the computer at random times. The only way I can get the Internet functioning again is by unplugging the power from the back of the cable modem and plugging it back in again. There has to be an easy fix for this issue, I can't believe Microsoft hasn't said anything about it. I've researched this error for the past two weeks and none of the fixes I've seen have been working. I am running Windows 7 Professional 32-bit and constantly receive the Event ID 1014 DNS Client Events error in the Event Viewer. I am connected through a cable modem (Scientific Atlanta DPC 2100 R2 Series Modem). *I have no anti-virus or third party software installed on my system *I have Windows firewall enabled. *The NIC drivers are all up to date *IPv6 is disabled *I am running Firefox 3.6.6 *All check boxes under the Power Management tab for the NIC properties are checked *All Power Options are set so that the system never sleeps or hibernates

Hi mitchkas When Harware is the issue, software can't do anything. When you unplug the cable modem and plug again, you're forcing a reconnection with your service provider. If the link fails, please make a support call to your provider. Maybe the cables, links, connections between your provider and you home have issues like intermitent connections, noise, water, whatever. Alfredo ArizaletaDisclaimer: This posting is provided "AS IS" with no express or implied warranties or rights.

Happened again this morning ... I checked the Event Viewer, and sure enough, 2 more entries. I will try tech support for my ISP, but I just have a feeling that it's something to do with all this IPv6 stuff that Microsoft included in Windows 7. Also, this morning, I disabled the three IPv6 features on the Advanced tab for the LAN properties, hopefully that helps. Log Name: System Source: Microsoft-Windows-DNS-Client Date: 7/18/2010 6:42:04 AM Event ID: 1014 Task Category: None Level: Warning Keywords: User: NETWORK SERVICE Computer: MIDNIGHT Description: Name resolution for the name teredo.ipv6.microsoft.com timed out after none of the configured DNS servers responded. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Microsoft-Windows-DNS-Client" Guid="{1C95126E-7EEA-49A9-A3FE-A378B03DDB4D}" /> <EventID>1014</EventID> <Version>0</Version> <Level>3</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x4000000000000000</Keywords> <TimeCreated SystemTime="2010-07-18T10:42:04.970267100Z" /> <EventRecordID>15489</EventRecordID> <Correlation /> <Execution ProcessID="1192" ThreadID="2004" /> <Channel>System</Channel> <Computer>MIDNIGHT</Computer> <Security UserID="S-1-5-20" /> </System> <EventData> <Data Name="QueryName">teredo.ipv6.microsoft.com</Data> <Data Name="AddressLength">16</Data> <Data Name="Address">02000035D043DCDC0000000000000000</Data> </EventData> </Event> Log Name: System Source: Microsoft-Windows-DNS-Client Date: 7/18/2010 6:42:08 AM Event ID: 1014 Task Category: None Level: Warning Keywords: User: NETWORK SERVICE Computer: MIDNIGHT Description: Name resolution for the name 6to4.ipv6.microsoft.com timed out after none of the configured DNS servers responded. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Microsoft-Windows-DNS-Client" Guid="{1C95126E-7EEA-49A9-A3FE-A378B03DDB4D}" /> <EventID>1014</EventID> <Version>0</Version> <Level>3</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x4000000000000000</Keywords> <TimeCreated SystemTime="2010-07-18T10:42:08.105872600Z" /> <EventRecordID>15491</EventRecordID> <Correlation /> <Execution ProcessID="1192" ThreadID="3004" /> <Channel>System</Channel> <Computer>MIDNIGHT</Computer> <Security UserID="S-1-5-20" /> </System> <EventData> <Data Name="QueryName">6to4.ipv6.microsoft.com</Data> <Data Name="AddressLength">16</Data> <Data Name="Address">02000035D043DCDC0000000000000000</Data> </EventData> </Event>

What I did was a little Internet research to figure out how to permanently disable IPv6. I had to make a quick adjustment to the registry in order to get that accomplished; we'll see if this works. http://www.tothepc.com/archives/disable-ipv6-on-windows-7-vista-pc/

still doesn't work after disabling all these services, I'm tired of this, I'm going back to XP

We'll see what happens... I've been working on trying to fix this issue for almost a month. I have done so much research and testing and tweaking to get it fixed and nothing seems to be working. I really don't think something this simple should involve this much work to get working properly.

Hi, Please obtain the following hotfix: You receive a stop error after you enable the RequireinClearout mode on an IPv6 network on Windows Server 2008 R2 or in Windows 7 BTW, I would like to recommend you to visit: You may experience connectivity issues or performance issues when you connect a mobile PC that is running Windows Vista or Windows 7 to a wireless access point Best Regards Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Before I try this hotfix, I want to see if the one change I made will work... I went into the Device Manager and clicked on "Show Hidden Devices" and disabled Microsoft 6to4 adapter, Microsoft ISATAP adapter, and WAN Miniport (IPv6). I restarted the computer after that and I'm waiting to see if that holds.

Well, the hotfix did not work and after the problem surfaced (in the middle of browsing the web, DNS decided to quit working). I ran the network connection diagnosis and the following two entries were made in the Event Viewer: Details about network adapter diagnosis: Network adapter Local Area Connection 2 driver information: Description . . . . . . . . . . : Realtek PCIe GBE Family Controller Manufacturer . . . . . . . . . : Realtek Provider . . . . . . . . . . . : Microsoft Version . . . . . . . . . . . : 7.2.1127.2008 Inf File Name . . . . . . . . . : C:\Windows\INF\netrtx32.inf Inf File Date . . . . . . . . . : Monday, July 13, 2009 8:46:34 PM Section Name . . . . . . . . . : RTL8168D.ndi Hardware ID . . . . . . . . . . : pci\ven_10ec&dev_8168&rev_03 Instance Status Flags . . . . . : 0x180200a Device Manager Status Code . . : 0 IfType . . . . . . . . . . . . : 6 Physical Media Type . . . . . . : 14 The Network Diagnostics Framework has completed the diagnosis phase of operation. The following repair option was offered: Helper Class Name: IpPath Root Cause: Your computer appears to be correctly configured, but the device or resource (DNS server) is not responding Root Cause Guid: {902390d9-0cd9-4f91-9e6c-8fa5e6dad657} Repair option: Contact your network administrator or Internet service provider (ISP) Windows can't communicate with the device or resource (DNS server). The computer or service you are trying to reach might be temporarily unavailable. RepairGuid: {7cfabead-3131-4cfc-b191-c973b7391e09} Seconds required for repair: 70 Security context required for repair: 0 Interface: ({00000000-0000-0000-0000-000000000000})

If reinitializing your cable modem (unplugging and replugging) fixes the issue every time, I suspect your cable modem is failing. Some things you might try to check this: Replace the cable modem (if it was supplied by your cable provider they'll probably do this at no charge) Put a router between your PC and the modem. The DNS will probably still fail, but if it's the modem the errors should be different as the computer can still contact the router's DNS service. Have a friend with a laptop drop by and hook it up to your connection. If it doesn't fail, then it's your computer/Windows 7; if it fails, it's the modem/connection to your ISP.

I just called my ISP (RoadRunner)...they tried running diagnostics on my modem and were receiving all errors when trying to do so. I'm having a technician come out to fix it, probably replace the modem.

replaced my cable modem and the problem is still not fixed.still receiving these events in the event viewer during the time of slow/no internet access: when I tried accessing the Internet sites this morning, only about half the site actually loaded then quit Here are some of the events in the event viewer at the time of the stoppage: *The browser has forced an election on network \Device\NetBT_Tcpip_{162620B4-6288-40F9-8DF4-2922771F2FEB} because a master browser was stopped. *The TCP/IP NetBIOS Helper service was successfully sent a stop control. The reason specified was: 0x40030011 [Operating System: Network Connectivity (Planned)] *The TCP/IP NetBIOS Helper service entered the stopped state. *The TCP/IP NetBIOS Helper service entered the running state. a few more of those events, then... *The WinHTTP Web Proxy Auto-Discovery Service service entered the running state. *Name resolution for the name teredo.ipv6.microsoft.com timed out after none of the configured DNS servers responded. *Name resolution for the name 6to4.ipv6.microsoft.com timed out after none of the configured DNS servers responded. and here is my NIC configuration: Microsoft Windows [Version 6.1.7600] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\Mitch>ipconfig /all Windows IP Configuration Host Name . . . . . . . . . . . . : MIDNIGHT Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : neo.rr.com Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : neo.rr.com Description . . . . . . . . . . . : Realtek RTL8168D/8111D Family PCI-E Gigab it Ethernet NIC (NDIS 6.20) Physical Address. . . . . . . . . : 40-61-86-E2-67-6C DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 76.190.239.61(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.224.0 Lease Obtained. . . . . . . . . . : Wednesday, July 28, 2010 5:24:57 AM Lease Expires . . . . . . . . . . : Thursday, July 29, 2010 5:24:56 AM Default Gateway . . . . . . . . . : 76.190.224.1 DHCP Server . . . . . . . . . . . : 10.248.0.1 DNS Servers . . . . . . . . . . . : 209.18.47.61 209.18.47.62 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.neo.rr.com: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : neo.rr.com Description . . . . . . . . . . . : Microsoft ISATAP Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Tunnel adapter 6TO4 Adapter: Connection-specific DNS Suffix . : neo.rr.com Description . . . . . . . . . . . : Microsoft 6to4 Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes IPv6 Address. . . . . . . . . . . : 2002:4cbe:ef3d::4cbe:ef3d(Preferred) Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301 DNS Servers . . . . . . . . . . . : 209.18.47.61 209.18.47.62 NetBIOS over Tcpip. . . . . . . . : Disabled 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. . . . . . . . . . . : 2001:0:4137:9e76:1c7f:18c4:b341:10c2(Pref erred) Link-local IPv6 Address . . . . . : fe80::1c7f:18c4:b341:10c2%14(Preferred) Default Gateway . . . . . . . . . : NetBIOS over Tcpip. . . . . . . . : Disabled

Try this: Network Connectivity Status Indicator and Resulting Internet Communication in Windows 7 and Windows Server 2008 R2 http://technet.microsoft.com/en-us/library/ee126135(WS.10).aspx To use a Group Policy setting to prevent NCSI from communicating across the Internet Click Start, type gpmc.msc, and then press ENTER. Select an appropriate Group Policy object (GPO). Expand Computer Configuration, expand Administrative Templates, expand System, expand Internet Communication Management, and then click Internet Communication settings. In the details pane, double-click Turn off Windows Network Connectivity Status Indicator active tests, and then click Enabled.

Try this: Network Connectivity Status Indicator and Resulting Internet Communication in Windows 7 and Windows Server 2008 R2 http://technet.microsoft.com/en-us/library/ee126135(WS.10).aspx Same issue on my system. I tried this (EnableActiveProbing= 0) and got error free relief for several days. Surprising. But isn't this just masking the symptom not addressing the cause? In any case, today, the Network Service tried again to get to dns.msftncsi.com, and timed out. The reg setting is still zero. Very disappointing.

This doesn't appear to do anything on my system. I tried it both ways, with the registry edit and with the security policy change to turn off the feature. The NETWORK SERVICE still tries to contact dns.msftncsi.com.