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delay in conecting to terminal server?

Could anyone explain why, when I first connect to my 2003 Terminal Server from any remote PC (using either IP address or domain name) it takes around 10 - 20 seconds to bring up the login screen but subsequent connections only take 1 - 2 seconds? Is this normal?
Thanks
 
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ramick
Asked:
ramick
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1 Solution
 
Jay_Jay70Commented:
Hi ramick,

DNS settings, make sure they point only to your server
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ramickAuthor Commented:
Which DNS settings are you refering to?
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Jay_Jay70Commented:
client DNS setings - if you have any ISP DNS servers then remove them, you should only be looking at your DNS server
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ramickAuthor Commented:
The DNS server is not authoritative for that domain. A records are held at ISP.
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LohIncCommented:
If you are connecting using the IP address and the the FQDN, DNS shouldn't have any thing to do with it.

After you reboot the computer station does it take 10-20 seconds to connect on the first attempt again?
If so, reboot and then do a ping to the server IP and see what the response time is.

When you connect the first time, do you generally log off or just disconnect from the session?
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ramickAuthor Commented:
Yes it does

Response time is 25ms on average fist and subsequent attempts using IP address or FQDN

I log off but doesn't make any difference. I can just bring up the logon screen and not even logon and the next attempt will go straight through.
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LohIncCommented:
what happens when you logon from a computer that is directly connected on the LAN side.  Or go directly to the server and open up a RDP connection.

Any lag then?
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ramickAuthor Commented:
No, they get through straight away. I have configured the HOSTS file on the 'local' PC's so that when they type in the domain name it gets resolved to the internal IP address of the TS so you would expect that anyway?

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LohIncCommented:
Summary:  correct me if I'm wrong: External computers have the delay, and they are connecting to the external IP.   Internal computers do not have a delay and they are connecting to the internal IP.

What happens to an internal computer if you tell it to connect to the external IP address?  Delay or not?
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ramickAuthor Commented:
Summary correct LohInc,

I'll have to reconfigure one of the local PC's to give you an answer to that question. But, before I made the additions to the HOSTS file I remember a similar delay on the network as they were resolving the domain externally.

Just a reminder, delay for external PC's is only the first time they connect after they have been switched on or re-booted.
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LohIncCommented:
Let me know what you find on the internal computers connecting to the external IP.

Also, what kind of device is the external IP, is it a NIC in the same server that is running ISA?  Is it a router / firewall?
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ramickAuthor Commented:
Will do but can't get on site for several days now.

The external IP points to a Vigor 3100 SDSL router/firewall with port 3389 forwarding to the internal IP address of the T Server.
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ramickAuthor Commented:
LohInc
Problem not always there now but thanks for help - i've given you the points for your assistance so far.
CLive
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LohIncCommented:
Thanks,

If your internal computers connect fine to internal IP and they have the delay connecting to the external IP; I would say that it is firewall related.    If the connection to the external IP is just as quick as connecting to internal IP, my next question would be who your ISP is.  If it is a local ISP, sometimes they have issues with their hardware that can cause poor VPN and Terminal Services sessions.

LohInc
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