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SBS 2003 Network Slow Transferring Files

The network is running slow transfering files from Small Business Server 2003. When I transfer files to the server from any of the desktops it transfers fast. But when i try to copy files from the server to any of the desktops it is very slow. When I transfered 275MB to the server it took about 10-15 seconds but when I tried to copy it back it took over 2 hours. I am assuming it has something to do with DNS problems but I have not been able to find anything wrong. The switches, servers and desktops are all brand new.
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nxpsupport
Asked:
nxpsupport
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1 Solution
 
rolustCommented:
Hi

Can you please post a ipconfig /all from both SBS and a client

Robert Lundqvist
Small Business Specialist
Sweden
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nxpsupportAuthor Commented:
Workstation:

Windows IP Configuration

        Host Name . . . . . . . . . . . . : WKSTN01
        Primary Dns Suffix  . . . . . . . : corp.domain.com
        Node Type . . . . . . . . . . . . : Hybrid
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : corp.domain.com
                                            domain.com

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network Connection
        Physical Address. . . . . . . . . : 00-13-20-C3-E0-CD
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.202.117
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.202.1
        DHCP Server . . . . . . . . . . . : 192.168.202.20
        DNS Servers . . . . . . . . . . . : 192.168.202.20
                                            192.168.202.1
        Primary WINS Server . . . . . . . : 192.168.202.20
        Lease Obtained. . . . . . . . . . : Saturday, July 21, 2007 3:57:15 PM
        Lease Expires . . . . . . . . . . : Saturday, July 28, 2007 3:57:15 PM




Server:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : server01
   Primary Dns Suffix  . . . . . . . : corp.domain.com
   Node Type . . . . . . . . . . . . : Unknown
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : Yes
   DNS Suffix Search List. . . . . . : corp.domain.com
                                       domain.com

Ethernet adapter Server Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client)
   Physical Address. . . . . . . . . : 00-19-B9-C1-15-F8
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.202.20
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.202.1
   DNS Servers . . . . . . . . . . . : 192.168.202.20
   Primary WINS Server . . . . . . . : 192.168.202.20
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rolustCommented:
Hi

Your Clients have your GW as second DNS, remove that and use only SBS as DNS, which have forwards to your ISP.

Robert Lundqvist
Small Business Specialist
Sweden
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
nxpsupport,

rolust's recommendation is definitely correct, but when I saw that you were using a subdomain that had me concerned about other issues you may run into.  (I was also curious how you got the router's IP on the workstations anyhow since they are using DHCP -- as they should be).

I took the liberty of looking at your public/Internet routing structure.  (As a Zone Advisor I have access to your registration IP address).  I would only do this if I felt there was a compelling reason and felt that by checking it out for you it could save you a lot of headaches in the future.

While it is definitely possible to use a third level domain name for your AD domain structure (ie, domain.co.uk for instance) there is rarely a need for it, and it DOES complicate the traffic within your LAN a bit.  It's recommended that you use a non-resolvable Top Level Domain (TLD) such as .local, .office or .network to keep your AD DNS structure completely separate from any public domain space for both security as well as resource issues.  You definitely don't want to be running a DNS server on your LAN that is serving requests from the outside anyhow... because there is no doubt that would slow down your internal network traffic not to mention be a huge security risk.

What it is NOT possible to do with an SBS is to use sub-domains.  SBS's licensing does not permit it and since the product is designed to work in a single domain structure with less than 75 nodes, there's no reason to even want to use sub-domains with SBS.

I would be happy to provide specific information regarding your particular situation if you need it.  Please post any such request in a separate question.  Also, feel free to use an alias for your domain name to protect privacy.

Jeff
TechSoEasy
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nxpsupportAuthor Commented:
The reason the router's IP address is listed in the DNS settings is because it has a built-in DNS proxy. I've used this setup before so if the server is down for whatever reason people are still able to access the internet. I've never had this problem before. I am trying to make the DNS changes now but I am working remotely and the clients internet connection is very slow. I will let you know.
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nxpsupportAuthor Commented:
I made the changes in DHCP on the server and renewed the IP address of the workstation I am using to test this. The router's IP address is no longer in the DNS. It is still very slow when transferring files from the server to the desktop. I flushed the DNS on the workstation and server. I just restarted both of them.
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
Please review both http://support.microsoft.com/kb/321098 and http://support.microsoft.com/kb/321169 as possible causes of this issue.

Jeff
TechSoEasy
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
Also... since you say you "made the changes in DHCP" does that indicate that you had added the router's IP after running the Configure Email and Internet Connection Wizard (CEICW -- linked as "Connect to the Internet on the To-Do list in the Server Management Console)?  Or had you manually configured DHCP from the start?  Because the CEICW would normally be the way to ensure that you have the proper settings.

Jeff
TechSoEasy
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nxpsupportAuthor Commented:
I dont remember if I added it during the connection wizard or after. I re-ran the connection wizard and set everything up again. I also made the changes in Work Around 1 on http://support.microsoft.com/kb/321169 .
After I did that I was able to copy 500MB from the server very fast but that only worked once, now it is slow again.
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Jeffrey Kane - TechSoEasyPrincipal ConsultantCommented:
But you're sure that the extra DNS IP was coming from DHCP and not manually configured on the workstation?

At any rate, would you please post the output from running "ROUTE PRINT" on a workstation?

Jeff
TechSoEasy
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nxpsupportAuthor Commented:
Turned out to be Broadcom Network Load Balancing.  Disabled and works fine now.  The other NIC was disabled but still caused issues.
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