Win 7 PCs have no internet connection, but have network connection. XP/Vista PCs unaffected. Very odd!
We have a small domain based network dominated by Windows XP PCs. Starting about two weeks ago, two of our Windows 7 PCs are having a problem where they can not access the internet, but have nice speedy access to our Windows Server 2008 based network shares. Now the other two Windows 7 PCs are affected. Making the problem even more bizarre, two of the computers have worked correctly for at least one day during this period, seemingly randomly, and both during different time periods. Pinging the gateway from these PCs results in some "Destination host unreachable" responses and some requests timing out. These PCs are able to obtain IP addresses normally. Based on this thread and other Googling, I have tried the following unsuccessfully: Manually configured an IP address, etc. Disabled and re-enabled network adapters Disabled all IPV6 in the network card. Rebuilt the IP stack. Turned off IP Helper Service Turned off HomeGroup Services Turned off Symantec Endpoint Security Any ideas would be appreciated!
November 16th, 2010 5:11am

Hi, If you cannot ping the gateway, you may have an issue with the network adapter, gateway device, or other connectivity hardware. Based on your description, a lot of Windows 7 PCs were affected, you could try to update network driver for Windows 7 to check how it works. Due to this is random phenomena, I also suggest you contact your service provider for help. Hope it helps. Alex ZhaoPlease 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.
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November 21st, 2010 10:11pm

Same here. Loaded a usb modem for wireless internet connectivity. It worked perfectly. After removing device and rebooting I could see LAN, via domain login. Email (exchange) also still working, but no internet access. static IP does not help. Any suggestions? Initiating a VPN connection does restore connectivity, but this is a temporary fix.
November 25th, 2010 4:26am

I would just like to add I have the same problem as described above. In my domain it only affect 1 computer running windows 7 x64 ultimate, not the 10 other PCs running samo OS. * I tried all the steps above, no change. * Removed the USB DLINK network adapter, reinstalled then installed again. Same problem works fine on LAN but not internet. * Bought a new USB DLINK next gen adapter, installed it but still the same problem. Is there somewhere in Group Policy that might block this? Dump of config of NIC Windows IP Configuration Host Name . . . . . . . . . . . . : Illustrator Primary Dns Suffix . . . . . . . : hq.norwegianproperties.int Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : hq.norwegianproperties.int Wireless LAN adapter Wireless Network Connection 2: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : D-Link Wireless G DWA-110 USB Adapter #2 Physical Address. . . . . . . . . : 00-21-91-84-C0-2E DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::1461:ec23:3a73:62f1%14(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.207(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 369107345 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-DE-23-4D-00-23-54-5B-C0-05 DNS Servers . . . . . . . . . . . : 192.168.1.150 192.168.1.1 202.69.137.137 202.69.137.138 NetBIOS over Tcpip. . . . . . . . : Enabled Tunnel adapter isatap.{B92CA1F7-FD7C-4724-A45D-012A95C1906B}: 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: Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Microsoft Teredo Tunneling Adapter Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes
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February 14th, 2011 12:07am

I would just like to add I have the same problem as described above. In my domain it only affect 1 computer running windows 7 x64 ultimate, not the 10 other PCs running samo OS. * I tried all the steps above, no change. * Removed the USB DLINK network adapter, reinstalled then installed again. Same problem works fine on LAN but not internet. * Bought a new USB DLINK next gen adapter, installed it but still the same problem. Is there somewhere in Group Policy that might block this?
February 14th, 2011 12:13am

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