Hi I just ran into a problem implementing the http://support.microsoft.com/?kbid=891235 Setup: ISA std SP1 with 2 rules: Rule 1 : allow HTTP / Content types : images / users : All authenticated Rule 2 : allow HTTP / Content types : all / users : All authenticated Clients have FW client installed and proxy settings set. With these rule many websites work just fine, but several will have problems. I.e. http://support.dlink.com Select DWL (number 2 from the buttom) and then 2000AP Click Go Now the browser will just hang on an URL : http://support.dlink.com/products/revision.asp I have testet this on several installtions, and all with the same problem. Running the same rule without authentication has no problems. Have any of you seen this problem ? And maybe know of a hotfix or work around ? Michael