internet explorer - IE 8 making tons of extra DNS requests with "NotSupported" returned -

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i have scenario user using ie 8 , trying access external sharepoint site , authenticating ntlm. login works fine, , resources downloading, takes forever (it's 3 minutes) sharepoint page load.

i ran ms visual roundtrip analyzer on user's desktop , found there tons of dns requests being made domain of external sharepoint site, , returns "dns notsupported". doesn't happen in firefox, , page loads absolutely fine.

is there ie 8 dns setting has change? why these dns requests made?

thanks!


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