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dgunner -> Slow browsing in IE 8, normal browsing in Chrome (21.Dec.2011 6:01:44 AM)
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I upgraded to TMG 2010 on Win 2008 R2.
TMG was built on a different IP to the ISA server, ISA was turned off and the IP changed on TMG. I changed the various registry entries on TMG to ensure the new IP was correct and also on the array network object.
TMG has the correct network adapter settings i.e. DNS on internal, gateway on external, network binding with internal at the top, external at the bottom.
Clients were slow to bring up the default web page when starting IE but once it was up IE was generally fine.
I installed Chrome as a test and it worked perfectly fine, no problems and very fast browsing.
On TMG I have enabled:
Web browser:
Bypass proxy for Web Servers in this network
Direct access for computers specified in the domains tab
Direct access for computers specificed in the Addresses tab
Web proxy:
Enable WebProxy client connections - port 8080
Forefront TMG Client:
Enabled
TMG client configuration - hostname.domain.com
Automatically detect settings - off
Use config script - on, default
Use a web proxy server - on, hostname.domain.com
Auto discovery:
Publish - port 8080
Windows hosts have the TMG client installed.
WPAD is configured on the DHCP server and clients can download the file and the array.script
The sort of issues I am experiencing are:
With automatically detect settings enabled clients take 10-20 seconds to load the home page
With it turned off they load the home page instantly but not all sites seem to work, some take a very long time to load up whereas on Chrome the issue doesn't exist.
On some sites, links do not work correctly e.g. a link to download a file instead of launching the dialog box to save the file IE goes to a blank screen
Sometimes sites don't load at all and you get a blank white screen with 'done' in the status bar. You have to close IE and start again.
A tab on IE is fine but when you open another tab you can't browse on that tab, just a white page
Things I have tried:
Resetting IE settings
CHecked DNS (although I know this is fine because Chrome doesn't have any issues.)
Ran a trace to see what the client is doing - all communication seems to be with TMG so no routing issues
I have used ISA and TMG for years wihout any issues and I'm not sure where else to look.
My only remaining thought is that IE8 just doesn't play nicely with TMG which seems a long stretch as many people must have been using it.
What else can I check or look at?
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