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Very slow network connection on one workstation


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#1 marlattts

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Posted 29 November 2011 - 02:29 AM

I have one workstation on our network just started having network performance issues. The issue is with accessing LAN resources and Internet resources. All other computer and devices on the network (20+) are preforming at expected speeds. This computer acts as a server that hosts a CAT Scan Imaging Database (MSSQL). When viewing the images on the database from this local computer (localhost) the images load at the proper and expected speed. When trying to access the database from any other computer on the LAN the images load very slowly. While attempting to download CCleaner and Malwarebytes I noticed that they were taking MUCH longer then usual (20 mins for CCleaner). I have tried everything that I can think of and I just can't seem to get the network connection on this computer to speed up. Thanks in advance for your help.

System Specs:

Windows XP Pro Service Pack 3
Intel Xeon 5139 @ 2.00 GHz
2.00 GB of Ram

NIC 1: Broadcom NetXtremes 57xx Gigabit Controller

Link Speed & Duplex: Auto Negotiation
Power Management: Disabled

NIC 2: Intel Gigabit CT Desktop Adapter

Link Speed & Duplex: Auto Negotiation
Power Management: Disabled


IPCONFIG /ALL

Windows IP Configuration


Host Name . . . . . . . . . . . . : pxserver
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No


Ethernet adapter Local Area Connection 3:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel® Gigabit CT Desktop Adapter
Physical Address. . . . . . . . . : 00-1B-21-C6-D1-C7
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.1.110
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 192.168.1.10
192.168.1.5




Steps Taken

I have preformed the following tasks to attempt to resolve the slow network connection issue:
-Rebooted (multiple times)
-CCleaner
-Malwarebytes (No malware found)
-Disabled firewall (temporally for testing purposes)
-Disabled Anti-Virus (temporally for testing purposes)
-Used PC-Decrapifier to uninstall all unnecessary software
-Ran windows Updates
-added a second network card (NIC 2 above) and disabled the onboard network card (NIC 1 above)
-Flushed DNS (ipconfig /flushdns)
-Below are the ping tests results for both Yahoo.com and the gateway:

YAHOO.COM
Ping statistics for 72.30.2.43:
Packets: Sent = 63, Received = 61, Lost = 2 (3% loss),
Approximate round trip times in milli-seconds:
Minimum = 43ms, Maximum = 109ms, Average = 46ms


GATEWAY
Ping statistics for 192.168.1.1
Packets: Sent = 79, Received = 77, Lost = 2 (2% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 1ms, Average = 0ms


Speedtest.net results

Ping: 7 ms
Download Speed: 0.57 Mbps
Upload Speed: 2.78 Mbps


*****Results from a different computer on the same network**********

YAHOO.COM
Ping statistics for 98.139.180.149:
Packets: Sent = 54, Received = 54, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 108ms, Maximum = 439ms, Average = 153ms

GATEWAY
Ping statistics for 192.168.1.1:
Packets: Sent = 55, Received = 55, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 2ms, Average = 0ms

Speedtest.net results:

Ping: 14ms
Download Speed: 50.66 Mbps
Upload Speed: 9.50 Mbps


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#2 marlattts

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Posted 29 November 2011 - 02:44 AM

I just rebooted into Safe Mode, ran the same tests with similar results.

#3 hamluis

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Posted 29 November 2011 - 08:14 AM

Have you taken a look in Event Viewer...to see what errors (not warnings or info items) are a concern on that system?

How To Use Event Viewer - http://www.bleepingcomputer.com/forums/topic40108.html

Louis




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