Hi,
Does any know if there have been any alterations in Internet Explorer 9 and the way it resolves DNS queries, specifically DNS prioritisation?
We use DNS prioritisation in our environment to ensure users connect to their local server depending on what subnet they are in. When running Windows 7 with IE8 all http requests resolve correctly and are consistent with ping and nslookup. However when running Windows 7 with IE9 http requests result in inconsistence results and do not match ping and nslookup.
Our DNS servers are running Windows Server 2003 and have Round Robin disabled. Our Windows 7 clients all have the following registry key to ensure DNS prioritisation is used.
I can provide you with further details on our environment but thought it would be worth asking the question in case there is a similar key for IE9 although I have yet to find one after extensive searching online.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
DWORD = OverrideDefaultAddressSelection
Value data: = 0
Kind regards