burnmelt wrote: ISSUE DESCRIPTION:  My windows 7 ultimate (SP1) box cannot use any valid DNS servers for name resolution.  It can ping any ip addresses both inside and outside the network.  I've tried multiple open DNS servers, all pingable.  All nslookups fail, both forward and recursive.  Websites cannot be brought up by ip address either.  Other units on the network are unaffected.  No changes were made to the system when the issue began last night.  Both mobilemouse and itap (methods for controlling curser via smart phones) are unresponsive now as well.  Pinged 8.8.8.8 twenty times, 0 packet loss.  STEPS TRIED: Disabled and re-enabled ipv4.  Flushed DNS cache.  Rebooted.  Tried both DHCP and a manual ip address.  Restarted router.  Tried ISP's DNS, google's DNS and open verizon dns.  Setup selective start-up via msconfig allowing only Microsoft processes to run. NETWORK DRIVER: NVIDIA nForce networking driver: 1.0.1.211 I'm out of ideas short of blowing away the entire installation which I really do not want to do.  Can't find my original install media or serial number since moving and I really don't wanna buy windows again. And did you try all this with firewall completely disabled, too? Wolfgang

Correct, windows firewall is completely disabled. The router's firewall only blocks incoming, not outgoing traffic. There is no DMZ setup on the network either.

ISSUE DESCRIPTION: My windows 7 ultimate (SP1) box cannot use any valid DNS servers for name resolution. It can ping any ip addresses both inside and outside the network. I've tried multiple open DNS servers, all pingable. All nslookups fail, both forward and recursive. Websites cannot be brought up by ip address either. Other units on the network are unaffected. No changes were made to the system when the issue began last night. Both mobilemouse and itap (methods for controlling curser via smart phones) are unresponsive now as well. Pinged 8.8.8.8 twenty times, 0 packet loss. STEPS TRIED: Disabled and re-enabled ipv4. Flushed DNS cache. Rebooted. Tried both DHCP and a manual ip address. Restarted router. Tried ISP's DNS, google's DNS and open verizon dns. Setup selective start-up via msconfig allowing only Microsoft processes to run. NETWORK DRIVER: NVIDIA nForce networking driver: 1.0.1.211 I'm out of ideas short of blowing away the entire installation which I really do not want to do. Can't find my original install media or serial number since moving and I really don't wanna buy windows again.

Hi, Since this issue happened last night, I suggest you perform a system restore to check the result. In addition, try to rest the router and temporarily disable routers all firewall settings to test the issue. Hope this helps Vincent Wang TechNet Community Support

Resetting router and then disabling firewall fixed it. Weird that it only affected 1 device and that only after resetting router would the firewall really disable, but whatever. Thanks man!

Hi, I am glad to hear this issue has been resolved. Hope it will not occur again. Regards Vincent Wang TechNet Community Support