Losing Internet connection but maintaining LAN connection

By my_pcfixer ·
Heres the situation:
I have 6 computers on my network(all xp pro), running server 2003. On one of the pc's I have recently been having trouble losing internet connectivity. I am still able to access local files on the network and run software which accesses file on the server. This seems to happen every morning when my client comes in-- he is able to restart the computer and regain internet connectivity until it happens again the following morning.
We are using Cisco equipment.
Any support would be greatly appreciated.

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by sgt_shultz In reply to Losing Internet connectio ...

can you try running a day in safe mode with networking? if the internet stays up that way then I say look for spyware/viruii on the problem box. You could also swapping the switch port and cable from a non problem box...

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A couple more checks

by Jacky Howe In reply to Losing Internet connectio ...

You can use Device Manager to change the power management settings for a network adapter. To disable this setting in Device Manager, expand Network Adapters, right-click the adapter, click Properties, click the Power Management tab, and then clear the Allow the computer to turn off this device to save power check box.

Click Start, Run and type netsh winsock reset and press Enter or click OK.
How to troubleshoot network connectivity problems in Internet Explorer
How to determine and to recover from Winsock2 corruption in Windows Server 2003, in Windows XP, and in Windows Vista
Check to see that you are connecting to the right DNS Servers. ipconfig /all can be used from a Command Prompt.

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