Server 2003 stops sharing files and stops

Hi this is my first post so thanks to all in advance.

I have stated having an issue on my servers and the issues seems to be applying to all

Servers
1 File Server, Exchange and AD
2 Application Server
3 Terminal Server

The servers stop sharing files and accasionally stop saving data to the shares. I am still able to logon via remote desktop and nothing appears to be running at 100% cpu. After a server reboot  services return to normal but then after 3-4 hours the issues return. I have disabled A/V but the problem still occurs.

What information can I provide to help diagnose this issue?

Thanks
David
daveriddlerAsked:
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Glen KnightCommented:
When this happens again check to see if any services that are set to Automatic are stopped, specifically the Server service.

If you see any right click on them and select start, do they start and are you then able to browse shares again?

Do a full virus scan and also use the Microsoft Malicious Software Removal tool to see if they find anything.

Check the scheduled task list on the server,  is there anything there you don't recogise?
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daveriddlerAuthor Commented:
I have checked the services for all 3 servers and there are no services on Automatic that have stopped and the Server service is on as well. I will perform a full scan wih the microsoft malicious software tonight.


The schedule on the First server
ShadowCopyVolume{0f6e97fa-34f9-11db-bc48-0019bb2940a0}.job      Command Line Interface for Microsoft® Volume Shadow Copy Service       Microsoft Corporation      c:\windows\system32\vssadmin.exe

The scheduled task on the second Server
ShadowCopyVolume{0f6e97fa-34f9-11db-bc48-0019bb2940a0}.job      Command Line Interface for Microsoft® Volume Shadow Copy Service       Microsoft Corporation      c:\windows\system32\vssadmin.exe

the scheduled tasks on the 3rd server
User_Feed_Synchronization-{ED6A0352-915D-4C22-986E-7C379B799884}.jobMicrosoft Feeds Synchronization      Microsoft Corporation      c:\windows\system32\msfeedssync.exe      

When I just tried to restart the server service on the 3rd server it fialed to stop in a timely manor and now is sitting in a stopping state.

Can you please offer some more suggestions?

thanks
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Glen KnightCommented:
When the shares go down are you able to ping the servers by name and IP address?
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daveriddlerAuthor Commented:
Yes ping is working fine, and when I tracert it goes straight to the server.
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Glen KnightCommented:
Are you able to access the shares from another server or does it only effect the clients?
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daveriddlerAuthor Commented:
it occurs to all machines on the network
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Glen KnightCommented:
So all machines cannot access all servers at exactly the same time?

That says to me it's more likely to be a switch problem?
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daveriddlerAuthor Commented:
I will try and isolate our switches (as we have 3)  to see if one is the issue but all problems are resolved temporarily when I reboot the servers. Could it still be a switch issue?
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Glen KnightCommented:
are the servers all plugged in to the same switch?
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daveriddlerAuthor Commented:
Yes, I will try and isolate this switch by using the other 2 and post my findings.
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daveriddlerAuthor Commented:
It appears that one of my switches is faulty.

Thanks for the help
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Windows Server 2003

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