Hi all, I recently upgraded to Windows 7 Ultimate from Vista Home Premium about a week ago. Starting yesterday 12/24 around 3:00 pm, my internet started to show "internet access" but constantly has the yellow caution sign. I have searched through at least 20 posts and threads about similar issues, ran troubleshooting, uninstalled all anti-viruses, disabled firewalls, restarted router, EVERYTHING...you name it. This is really becoming a huge problem and I would really appreciate it if ANYBODY could help me out. P.S. I use both a wireless and wired connection (BOTH do not work). Whenever I disable then re-enable my internet connections, they stay connected for about 5 seconds then stop working completely. The only actual lead I have is that troubleshooting reports give me the message that "Windows can't communicate with the device of resource (primary DNS server). I know that it is Christmas and I really would appreciate some much-needed help. THANKS!!