From time to time IE cannot access some internet sites.IE Displays "cannot access webpage".microsoft.com always works. google.com, search.live.com often do not. Network diagnostics wizard does not detect a problem (because it can connect to microsoft.com). Disabling IP6 did not help. Adding DhcpConnEnableBcastFlagToggle=1 (see http://support.microsoft.com/kb/928233/en-us) seemed to help after a reboot, but after some hours the problem reappeared. I am using a D-LINK 624+ router. A Vista machine connected to the same router works fine.

I use a DLink 655 that works fine for 7. Your router probably works too. If you can open http://192.168.1.1 it should be OK. I would try clearing the IE cache (tools menu, 'delete browsing history')Rating posts helps other users Mark L. Ferguson MS-MVP

After some reboots a system restore and reapplying theDhcpConnEnableBcastFlagToggle fix the problem seems to have solved itself.Since a couple of days I can access all web sites without problem.

thanks that helped..was breaking my head on a similar issue with no Internet connectivity..athough I use a Linksys WRT54G with DD-WRT and not D-Link..