TCP/IP connection problem, No connection found after updates installed
Error Message: Opening IE8 produces error msg: unable to resolve DNS. No connection found. (Same error using FireFox 3.6, also on this PC.) Short description: Internet Explorer 8 doesn't load MSN.com web page. Error message: Internet connectivity temporarily not available DNS not reachable Other computers on same NW Router work fine. (The end user will be using Dial-up to connect this PC to the Internet) I suspect NW configuration issue Problem detail: OS of PC (PC-1): Win XP-Pro SP3 Recent Changes: Downloaded & installed Internet Explorer 8 (IE8) Installed Norton 360 v3.0 Ran Windows Updates ... automatically downloaded & installed 49 updates. Rebooted PC. Ran Norton 360 virus ... automatically downloaded & installed. Rebooted PC. Windows updates indicated again. Downloaded and installed 2 more. Rebooted PC. After updates, now PC-1 can't access Internet on my broadband LAN. Investigation:1. Check NW information on computer "PC-1": START > Run > cmd [Enter] In Command Prompt window, type: ipconfig /all [Enter] Results:========================================================Windows IP Configuration Host Name . . . . . . . . . . . . : PC-1 Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connection Physical Address. . . . . . . . . : 00-12-3F-BD-1A-28 Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Autoconfiguration IP Address. . . : 169.254.43.110 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : ========================================================Note that Default Gateway is blank, No IP address assigned. 2. Tried to repair NW connection at CMD prompt (No improvement): ipconfig /release ipconfig /renew ipconfig /all (Same results as above. No Default Gateway, No DHCP-assigned IP address from router.) 3. Checked Router & cable Connection (Both Good!): Disconnected the ethernet cable from problem PC (PC-1) and connected that cable instead to PC-2. PC-2 gets full connectivity (ipconfig /all shows PC-2 Gateway & DHCP IP address; internet browser loads pages) with that NW cable. Swapped Ethernet cable back into PC-1. 4. Tried new Network Interface Controller (NIC) in PC-1 (No improvement) Powered down PC-1. Installed a second NIC into PC-1. Powered up PC-1 and let Win XP OS PnP load the appropriate NIC driver. Left integrated NIC still active (but without ethernet cable). Swapped ethernet cable from integrated NIC to second NIC. Rebooted PC-1 On Reboot, NW connections recognizes second NIC. No HW conflicts. Checked ipconfig /all. Second NIC info displays but has same Gateway & IP problems 5. Ran Virus scan (No infections) Ran Norton 360 with virus definitions previously downloaded during the updates. Systems is clean! 6. Ping out OK In Command Prompt window, ping to ISP is successful in one hop Can NOT Ping gateway IP address 7. Tried shutting down Firewalls (No improvement) Norton 360 SmartFirewall set to "OFF". Tried to repair IP connection (Step 2 above) Shut down Win XP Pro Firewall Tried to repair IP connection (Step 2 above) Restored Firewall settings Conclusion: PC-1 has some networking misconfiguration (protocol?), corruption, or firewall issue. Perhaps symptom of undetected Malware Infection? Any Guidance is appreciated. Without going into detail, in this, my volutneered effort, I'm doing God's work for a worthy family instead of just praying about it.1 person needs an answerI do too
February 28th, 2010 8:55pm

Wow. This has got to be one of the best-written forum questions I've seen in 13 years. So...let's try this. Go to a command prompt and type: netsh int ip reset c:\resetlog.txt That will use NetShell to reset TCP/IP.-B- http://www.officeforlawyers.com Author: The Lawyer's Guide to Microsoft Outlook
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February 28th, 2010 9:17pm

Hi, Ben, Thanks for your response. Problem continues...NW Connection Incremental Success:netsh command entered as you indicated. It took a minute to exact/process the change, but the NW connection icon (in task bar system tray) now shows "Connected" . I opened the connection and it shows "Connected" with a small amount of traffic history. The timer is still advancing the connection time.Results of netsh int ip reset c:\a_logs\Netsh_resetlog.txt==========================================================reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\AddressType old REG_DWORD = 1 deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\IpAutoconfigurationAddressdeleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\IpAutoconfigurationMaskdeleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\IpAutoconfigurationSeed<completed>========================================================== IE8 Not Connecting:I opened Internet Explorer and it still produces the same error indicating no internet connection.Contents of IE8 IP Status log==========================================================warn HTTP: Error 12007 connecting to www.microsoft.com: The server name or address could not be resolved warn HTTPS: Error 12007 connecting to www.microsoft.com: The server name or address could not be resolved warn FTP (Passive): Error 12007 connecting to ftp.microsoft.com: The server name or address could not be resolved warn HTTP: Error 12007 connecting to www.hotmail.com: The server name or address could not be resolved warn HTTPS: Error 12007 connecting to www.passport.net: The server name or address could not be resolved warn FTP (Active): Error 12007 connecting to ftp.microsoft.com: The server name or address could not be resolved error Could not make an HTTP connection. error Could not make an HTTPS connection. error Could not make an FTP connection. ==========================================================IP Address and Gateway still missing:From the command prompt, ipconfig /all still does not show any gateway or an assigned IP Address. Results of netsh int ip reset c:\a_logs\Netsh_resetlog.txt==========================================================reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\AddressType old REG_DWORD = 1 deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\IpAutoconfigurationAddressdeleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\IpAutoconfigurationMaskdeleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{8523F503-C550-445F-AB29-7D0628919361}\IpAutoconfigurationSeed<completed>==========================================================Can NOT Ping Router from this PC-1. Can Ping from PC-2.Other computer, PC-2, get a DHCP-assigned IP Address. Problem does not appear to be the router. Any ideas about what's going on?Thanks again for your time.Mark
March 1st, 2010 1:30am

Try doing an IPCONFIG /RENEW again now. If that doesn't work then let's try manually assigning an IP address/Subnet/Default Gateway/DNS in accordance with the settings on the other computer that works (but not the exact same IP address of course). Let's see if that works as a test.-B- http://www.officeforlawyers.com Author: The Lawyer's Guide to Microsoft Outlook
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March 1st, 2010 3:04am

Ben,No luck.The "netsh int ip reset" command clears the NIC warning "partial connectivity." Following that command with the ipconfig /renew and then ipconfig /all still shows the the info as: Physical Address: 00-12-3F-BD-1A-28 IP Address: 169.254.43.110 Subnet Mask: 255.255.0.0 Default Gateway: DNS Server: WINS Server: Why is PC-1 not acknowledging the router as the gateway?Why is PC-1 producing this IP address, 169.254.43.110, and not the dynamically assigned IP address from the router?I'm logged in with administrator privileges. I couldn't find the option to allow me either to enable DHCP or to set a static IP address. (Should be accessible by: right-click/select NIC > properties > General tab > Configure > Advanced tab > highlight desired IP option (from "Properties" list) > select corresponding option "Value"). The properties corresponding to dynamic IP addressing or static IP addressing just were not in the properties list!Fearing a BOT situation, I was curious as to why this IP address, 169.254.43.110, was appearing, so I did a "whois" search at http://ws.arin.net. It turns out that this Ip address is registered to (Internet Assigned Numbers Authority) IANA, the organization responsible for assigning IP addresses (I believe). OK, IANA is not a BOT Server. So why is this Ip address constantly returning? Then I searched the PC-1's registry for the IP address, 169.254.43.110 (START > RUN > regedit > CTRL+F > (find) 169.254.43.110 [Enter]. Then continuing to find next with Function key, [F3] ) It appears that the IP address was hard-coded in several TCP/IP values. Example (in the registry):====================================[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\{15D3EFBA-66F5-40D5-A66A-EE7C14C7508B}\Parameters\Tcpip]"EnableDHCP"=dword:00000000"IPAddress"=hex(7):30,00,2e,00,30,00,2e,00,30,00,2e,00,30,00,00,00,00,00"SubnetMask"=hex(7):30,00,2e,00,30,00,2e,00,30,00,2e,00,30,00,00,00,00,00"DefaultGateway"=hex(7):00,00"DhcpIPAddress"="169.254.43.110""DhcpSubnetMask"="255.255.0.0""DhcpServer"="255.255.255.255""Lease"=dword:00000000"LeaseObtainedTime"=dword:4b8de1f1"T1"=dword:4b8de1f1"T2"=dword:4b8de1f1"LeaseTerminatesTime"=dword:7fffffff===================================Perhaps the "EnableDHCP" (above) needs to be a "1" instead of "0" value.Perhaps the "IPAddress" and the "DhcpIPAddress" can be deleted so as to force new assignments.Perhaps I need to uninstall the NIC driver(s) and then remove the networking capability (from Windows Installed Applications)... reboot and then add them back in order to clear this IP configuration problem. BTW, the problem exists int "Safe Mode + Networking" as well.OK, at this point, I'm at a loss. I'm grasping at straws. I'd reinstall the whole OS and all the productivity apps, but I don't have the disks for the OS or Suite (XP-Pro OEM OS or the MSOffice 2007 suite disks) currently installed on this PC-1 (Pentium 4-HT 3 GHz).This is not my profession. I have no formal training in this and I readily accede my ignorance to the wizards.Any guidance appreciated. Apprentice, Mark
March 3rd, 2010 11:49pm

The 169.254.x.y address is the default address that Windows XP gives when it can't connect to a DHCP server. Nothing to be concerned about there - that's normal behavior when DHCP isn't working for some reason. The value of EnableDHCP actually SHOULD be 1 if you have it configured to use DHCP in the Network Connection, properties. You shouldn't need to change it in the registry though I guess we can try that if we run out of other options. Did you try manually assigning a static IP address, subnet mask (255.255.255.0, I'm sure) and default gateway (same as your other machine) to the adapter in the Network Settings, TCP/IP properties? -B- http://www.officeforlawyers.com Author: The Lawyer's Guide to Microsoft Outlook
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March 4th, 2010 12:50am

Manually assigning the IP Address wan't an option. There isn't such a selection available. It's as though some aspect of the networking has been disabled and the options to change them are removed.
March 13th, 2010 10:25pm

I haven't followed the entire thread. But here is my thread on exactly similar symptoms. http://social.answers.microsoft.com/Forums/en-US/xpnetwork/thread/5e37e585-5ebd-4a55-bb88-0d759f6485c1 Please see my last append, if that helps. Pramod
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April 29th, 2010 7:08pm

I have tried netsh reset to reset tcpip, socket etc. But nothing helped me either. I was also getting connected on network connections with just few packets received, but thats all. I also tried finding previous restore points using corrupt registry forums and tried restoring my XP to previous restore point. But since I upgraded my installation to SP3, my previous restore points were all the most recent ones and previous ones were not present. Any way that is a different story. I reverted it back and returned to the same point where I was getting the network error. Now after reinstalling XP and installing VPN as per my forum thread, I am pretty sure that VPN software with some new microsoft fix causes the network connectivity issue. Pramod
April 29th, 2010 7:15pm

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