iPhones, iPad and laptop can all connect through the wireless router but our desktop PC cannot. When diagnosing the problem I get the message "Your computer appears to be correctly configured but the device or resource (DNS server) is not responding" . In addition to other similar threads I've read, our PC cannot find the local printer it is connected to either.
- recycled the cable modem (Comcast)
- reconfigured the wireless router and restarted
- disabled IPv6
- ensured IPv4 is set to obtain IP address automatically (have also tried specifying DNS address to be the same as the router)
- tried the flushdns, release, renew sequence from a command prompt
- made sure the DNS in ipconfig is the same as the router IP (192.168.1.142 and 192.168.1.1)
- uninstalled McAfee
- turned off Windows firewall
- restarted in safe mode and run Malwarebytes and SpyBot
- turned off all sharing in the advanced sharing settings
- removed programs like Apple's Bonjour that I had read could mess up network settings
- tried to find drivers
to reinstall for the NIC card for the LAN (Broadcom Netlink Gigabit Ethernet) but ours appears to be old enough that Broadcom no longer lists the correct driver
as an option in their directory
None of this has worked. In the last few weeks, doing a system restore from a previous point worked to fix the problem but when Windows would download updates (12 year old user that forgot to choose not to download updates upon exiting) the problems would start up again. Now there is no restore point far enough back to have this solution work. This makes me think it's a Windows security update issue.
Any help would be greatly appreciated.