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Mapped Drives / File browsing very slow first time connecting to server

Posted on 2011-03-15
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Last Modified: 2013-12-23
Hi guys

We are experiancing a problem with all PC's / Servers on our network with mapped drives and file browsing. The first time a connection is made to the server it is painfully slow e.g. When a user logs in we have a logon script that maps several drives to our fileserver, the first mapping is always slow (taking approx 15seconds - 1 minute) and the others fly through. We also have the same thing when trying to access shares or remote C: drives.

I've also noticed that when looking through My Computer, quite often network drives appear as 'disconnected' but after browsing them (again taking 15 seconds - 1 minute) they are 'connected' again and can be browsed very quickly.

Any ideas on a solution to this problem would be much appreciated.

Thanks

Robbie

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Question by:robbiecookie101
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Expert Comment

by:dauman
ID: 35137081
make sure the computers that are slow have the server set as the first (and only) dns.

(on workstation) start, run, cmd. type IPCONFIG /ALL

also check the network speed,
go to the control panel, networking, click on the network adapter, check the speed.
make sure your slower computers are at the same speed as the other computers.

try a new network adapter to isolate that.

also if you have one check the network cables to make sure they are ok.
most basic network testers are around 20.00
(link to a paladin one: http://www.google.com/products/catalog?rlz=1T4ADFA_enUS335US336&q=network+tester&um=1&ie=UTF-8&cid=17455973254559704222&sa=X&ei=-1N_TZiDO4aisQOHwcyWBg&ved=0CE4Q8wIwAQ#)
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Author Comment

by:robbiecookie101
ID: 35137390
Hi Dauman,

All computers have our 2 DC servers (running DNS) as there DNS servers. The fileserver is seperate fom the DC's.

I can also confirm that all the computers are running at 1Gb and that i've checked & replaced numerous network leads to problem pc's and this hasn't resolved the issue.
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Expert Comment

by:dauman
ID: 35143995
have you tried moving the "broke" pc's to another part of the building, to a known computer/cable that has had no problems?

you also can try doing a ping or tracert to your file server.

start button, click run, cmd.
type "ping (file server name)"
or
type "tracert (file server name)"

your ping should be less than 1ms usually.
your tracert should be 1 hop, maybe 2 at the most.

does the problem happen when anyone log's into the computer or only when that user does?


a more drastic resort is to  try unjoining the "broke" computer from the domain, and back to the domain.
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Accepted Solution

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robbiecookie101 earned 0 total points
ID: 35185089
The problem was being caused by our antivirus a few changes to the config resolved this issue
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Expert Comment

by:Ernie Beek
ID: 35185277
Could you tell us (me ;)  what changes?
Some people I know would be very happy if your answer could resolve their problems.
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Author Closing Comment

by:robbiecookie101
ID: 35221295
This was the solution
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