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#1
Websites not loading in IE9, but work in Firefox or Chrome.
Hi,
I'm Phil. I've worked in IT for a few years now, and the following is one of the most confusing problems I've had to deal with.
At our organization, we run a network split over 8 sites. We have approximately 400~ computers. Our kit is of mixed quality - we have some solid computers, but our backend is still Windows Server 2008 R2 (we have one server at each site, linked via an internal network, and access to the Internet is routed through a proxy which handles filtering). Users login and receive settings via Group Policy.
Anyway - the actual issue we're having is that some of our machines with Internet Explorer 9 installed can only access a limited pool of websites (e.g., bbc, amazon, microsoft). Most websites do not work ("Internet explorer cannot display the webpage"), and it doesn't seem like the machine is even trying to connect to anything - it just goes to that screen in maybe 0.5 seconds.
Has anyone run into anything similar / does anyone have any ideas as to what could be causing this?
Cheers,
Phil
P.S -
- Notes:
- The machines can access the internet via Firefox or Chrome.
- We're unsure exactly when this began to pop up, but we think it was approx. April 15th~.
- It's nothing to do with our proxy, Firefox/Chrome pick the settings up from the same place as IE and they work.
- System time is synced across all machines.
- There's no immediately noticeable similarities between broken machines in Active Directory - we have two users in the same container and one has a broken laptop and one does not, etc.
- Upgrading to IE11 does fix the issue - IE11 works. But it's important that we have IE9 on some of our machines for reasons that are outside of my sphere of influence.
- Things we've tried:
- Flushing dns
- Resetting winsock
- Resetting tcp/ip stack in winsock
- Checked Hosts file (it's all normal)
- Resetting advanced settings in IE
- Resetting normal/all settings in IE
- Deleting Browser Cache in IE
- Checked Sites in IE (everything seems normal, like settings are on default and there no websites in any trusted/untrusted lists), and reset all IE Zones to default level.
- Removed all addons from IE
- Cleared SSL state from IE certificates
- Disabling all non-microsoft services
- Disabling antivirus (Sophos)
- Disabling proxy settings on and running a machine from a totally unrelated internet connection that does not go through a proxy (same result re: only some web pages work in IE, Firefox/Chrome work fine).
- Trying to get into sites via direct IP address (in case of a DNS issue) - no luck.
- Going through registry deleting any settings pushed out via Group Policy on the offchance there's some conflict somewhere. This is like... the thing I'm most unsure about. I think there's maybe something, somewhere that I haven't picked up on.
Last edited by Philip Addis; 07 May 2015 at 09:01.