Currently for all users within my organization when the "Auto Detect Settings" check box is selected under LAN Settings in IE Options the intial loading of a new page is extremely slow.
If Auto Detect Settings is turned on when a new browser window is opened or a new tab it takes about 30 seconds before the users browser connects to their home page or any webpage. Once the home page is loaded up the internet is very fast though. Its like it is trying to auto detect a proxy and timing out before it finds one then defaulting to the DNS or something.
This is occuring on all PC's running Windows XP IE 7 or IE 8 and Windows 7 PC's running IE 8.
Our PC's are on the 10.30.1.xxx subnet and have this problem. Our servers running on the 10.10.1.xxx and 10.20.1.xxx subets have the same Auto Detect Setting enabled in IE but do not experience this lag when initially loading a website.
Can anyone explain what the Auto Detect Settings function does or why it may be lagging the initial internet connection on our 10.30.1.xxx subnet? I am just looking for clues at this point since I dont even know where to begin. Should I look at Wireshark packet captures to look for a certain communication that may be timing out?
Thanks in advance