Internet Problem

[karldenton]

Thanks cookie_monster.
If i untick the "Automatically detect settings" it goes out straight away.
Is there any way of disabling in GP?
THanks

[cookie_monster]

Yes i think you can set it in Internet Explorer maintenance - Connection - Auto Browser Config

[karldenton]

Finally found a solution to this. Thought it was the "Automatically detect settings" but it wasn't. In the end it was that the tick box "Automatically check if IE is the default broswer" was ticked. Unticked that and it works fine.
Thanks for your help.

[karldenton]

Grrr, thought i'd found the solution but don't seem to have. Wors for administrator but not pupils or staff.?

[Michael]

There is a policy you can enable:

User Config > Admin Templates > Windows Components > Internet Explorer

Disable changing default browser check

[karldenton]

Thanks, tried that but still the same.

Thought i'd give Wireshark a go.

2 results are shown below in this post, one is staff one is administrator. All the ip's 192.168.42.* are on the local network, all the rest including 192.168.192.1 are external at redstone4schools. On the staff one there is a black line that says communication administratively filtered. Would like to know if thats local or at isp.
Thanks

[SYNACK]

Thanks, tried that but still the same.

Thought i'd give Wireshark a go.

2 results are shown below in this post, one is staff one is administrator. All the ip's 192.168.42.* are on the local network, all the rest including 192.168.192.1 are external at redstone4schools. On the staff one there is a black line that says communication administratively filtered. Would like to know if thats local or at isp.
Thanks

ICMP is ping type traffic. It looks like it can't ping that destination, either because ICMP is blocked by your gateway or to that specific host.

[karldenton]

Thanks, so its probably worth contacting isp as its a managed router from them?

[SYNACK]

Thanks, so its probably worth contacting isp as its a managed router from them?

Could be worth having a chat with them telling them about your problem and also giving them the information about the ICMP packet. They should be able to re-enable ICMP requests on the routers internal interface even if they still restrict it outside your local network.

[karldenton]

Ok, spoke with Isp and they say that ICMP been blocked has nothing to do with the delay. They say "The only thing I can think of is that the proxy settings are being overridden and turned off until the initial page loads (or does not in this case). We have seen similar strange issues in the past with browser plugins/add-ons, some of which are malicious. I would suggest checking what add-ons are running in IE (Tools>manage Add-Ons in IE7) and disabling them to see if that makes a difference."
Have disabled add-ons but still the same.
Me thinks there might be a wrong proxy setting in a registry somewhere thats been copied from an old default profile. Might write a vb script to set the correct proxy on log on and give that a go ! Any other suggestions?

[SYNACK]

You could have a look through these and see if any of that helps:
internet explorer cannot display page - microsoft.public.internetexplorer.general | Grupy dyskusyjne

the other thing that you could try is reducing the timeout value on your DNS server, this will make the DNS server requery the address of any site quicker if it is slow to respond and hopefully pass that along to your client before it times out (if this is the issue)

[karldenton]

Ok, just joined a new machine to the domain. No IE add-ons. Correct proxy picked up from GP, and is the same in registry.
Also tried shorterning to the timeout value from 5 to 3 seconds on DNS. Still the same.
Grrrr. Me is thinking something with dns could be at fault. In DNS its set to 193.164.97.35 and 212.44.55.100 which are our isp.

[Michael]

DNS should be setup as your DC first, then your ISP second and third...

[karldenton]

Thanks Michael. Forgot to mention that was on the forwarders in DNS itself.

Got a little bit further with this. Seems the delay is no longer apparent for administrators or staff, just for pupils?

[karldenton]

OK, almost there I think !!

If you log onto a machine as someone whos hasnt before, you get the error. If you open Internet Options, make no changed but close it again, there is then no delay. Even after a restart. Obviously this is a pain for staff but pupils don't have access to IE Options. Any ideas? At least we know where to look now !