Solved

windows: The network is freezing

Posted on 2011-09-05
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Last Modified: 2012-05-12
Hi,

1) This is an enterprise network in the production environment
2) The network has been freezing
3) The signs:
- The system does not allow any workstation to login to the network
- But all the workstaions that have been logged in BEFORE to the network working very well ....they still can navigate around the network ....only their activities  would be slower
4) My questions:
-What are the problems?
-How to solve it?
5) Thank you

tjie
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Question by:tjie
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9 Comments
 
LVL 82

Assisted Solution

by:leakim971
leakim971 earned 500 total points
ID: 36486122
How many switch do you have?
http://www.webopedia.com/TERM/B/broadcast_storm.html

How to prevent?
You need to active spanning tree (if available) on your router
http://en.wikipedia.org/wiki/Spanning_Tree_Protocol

Do you have a lot of workstations connected with wifi?

Else you may have a defective network card on a workstation
0
 

Author Comment

by:tjie
ID: 36486205
Hi leakim971,

1) This is possibly ONLY related to Microsoft Window
2) When we re-booted the File Server (this File server is Windows 2003 server), EVERYTHING comes to Normal
-any client machine will login again to the network as usual
3) What do you think the problems are?
4) Thank you

tjie
0
 
LVL 82

Accepted Solution

by:
leakim971 earned 500 total points
ID: 36486224
>1) This is possibly ONLY related to Microsoft Window
ok

>2) When we re-booted the File Server (this File server is Windows 2003 server), EVERYTHING comes to Normal
-any client machine will login again to the network as usual

How many machine do you have on the newtork? Your DHCP scope may have some difficulties to provide IP address
Did you check the event log on the server? What is the main events?

Install this software on a workstation : http://www.quest.com/spotlight-on-windows/
It may help find quickly some basic errors
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Author Comment

by:tjie
ID: 36486249

1) I believe the machines are less than 100
2) This is a Research Environment
- Some engineers can use the "sharing files" more than 50 (sharing files)
- Do you think "the sharing files" are the problems? If yes, how much "sharing files" are allowed in Microsoft Windows?
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LVL 82

Expert Comment

by:leakim971
ID: 36486274
can you answer the previous questions?
did you try the tools?
0
 

Author Comment

by:tjie
ID: 36486305
""" Do you have a lot of workstations connected with wifi? "
comment: Yes, possibly 40 -50 % using wireless (and this wireless is screened by MAC address of the laptops)

**** Else you may have a defective network card on a workstation ****
Comment: One defective Network Card can CAUSE this problem? Are you sure? It is very scary though ....

I have not yet a chance to use the above tool


0
 
LVL 82

Assisted Solution

by:leakim971
leakim971 earned 500 total points
ID: 36486326
nothing in the server event logs?
try the tools and let me know

>Do you think "the sharing files" are the problems?
If you mean everyone download file at the same time, you may have a problem of course but without any performance monitoring tools how to give a definitive answer?

>Do you think "the sharing files" are the problems?
I don't know, I think it depend your hardware and windows server version.

You really need a monitoring tools (the windows performance monitor) or a tools to help you diagnostic your problem
But again, check your event logs
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LVL 82

Assisted Solution

by:leakim971
leakim971 earned 500 total points
ID: 36486328
else :
you may have hardware failures (hard drive,)
do you have the latest updates and drivers installed?
what is the brand of the server? do you have diagnotics tools?
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LVL 82

Assisted Solution

by:leakim971
leakim971 earned 500 total points
ID: 36486365
Try without any internet connexion too
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