I've found that when our users take a laptop home, connect to our corporate network (which requires SSL) everything works fine. However, if they bring this device back to work and connect it will timeout. A network trace shows that IE is requesting 443 traffic, the problem is that we do not have SSL enabled on our internal site AND the url we are using in IE is simply http:// .
The fix so far is to reset IE settings, including "Delete Personal Settings". Further research shows that this reset is working because there is a file in the temporary internet files \ Content.IE5 \ XXXX \ site_domain_com[1] that needs to be removed. This file is literally has the underscores and is empty, as in zero bytes. It seems IE is using this file as a "connection reference" and will not connect to this site without SSL until this file is deleted. I can manually type the correct url in IE and it will time out even though the site is up and working fine. If I simply delete this file and refresh the page it loads fine.
I have noticed that if I have my default page http://SITE and launch IE in this "failed" state you can actually see the "https://SITE" appear for about 1 second and then switch back to "http://" and time out. Again a wire trace shows this behavior as well, IE "thinks" no matter what I do us SSL on this domain period because that's what was used before as we have this file in the temp files path.
Is there a way to tell IE to actually use http:// on a site that last connected via https://. This is causing users to call in tickets as they get to work and access our internal site until the temp files are deleted and then it will happen again if they connect from offsite and are forced over to SSL, creating this file and then not able to get in when back on our network.
Thanks for any help!
