Guest Matt Posted July 29, 2008 Posted July 29, 2008 Hello, I run a network of about 60 Windows 2003 servers. Each one runs a local caching only DNS (Microsoft DNS). They are used for monitoring web pages and each uses IE7 to load up web pages and verify the site is working. Lately we have been experiencing an issue where IE7 will no longer display websites. The symptoms are: IE7 will load Enter URL URL domain lookup fails Tries to redirect to friendly search suggestions Fails Address bar shows "http:///" No page is loaded This problem is intermittent on various servers with various levels of patching on different networks. None are associated with a domain or have any AD requirements. To fix this problem, we often end up just rebooting the server. There are some instances where just restarting DNS Server service fixes it or restarting DNS Client and DNS Server services fixes it, but this is not consistent. All my research on this points to a trojan of some sort, but that usually effects the box completely and doesn't fix itself after reboot. In any case, I've scanned all the servers and formatted some to try and remove that possibility. When the issue is happening, the registry keys for url prefix and the classid for the prefixes look normal. I'm at a loss as to what can cause this issue. Has anyone experienced this before? Thank you.
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