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Windows 7 drops lan connection about 4 seconds

ottenshx
ottenshx asked
on
Medium Priority
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Last Modified: 2012-05-11
Hello,

We have started in a enterprise envoirment slowly the rollout of windows 7.
Now after running some for a couple of month's the LAN network connection starts to dropout for 2 or 6 seconds.
What we see is that the citrix client is reconnecting , later with a close look and attention its the hole connection that gives a yellow mark in the systray, this will take up for a few seconds and is back on track.
At the time , Outlook stops responding wich is hosted by microsoft self, Citrix is trying to reconnect , some users have the luck that its comming back some uers needs to manual recoonect as the time was to long with a broken connection.

It started after a weekend doing same maintainance on the power supply. The upload to the switch has no connection from the gateway,( no lights) after changing it to an other port it was back . after a couple of days i turned it back to the orginal port and working.
I flollowed same cable with users that had problems and it looks that everything was going to 1 switch (Cisco) but with a test of changing a user to another switch it did came back.

When users are disconnected its never on the same time together.
i checked the dhcp lease time's but where very different from disconecting time's.
all users that are disconnected run windows 7.
i got one user that had already the same problem for more then 3 month but is located on a different site and does not use Citrix.

my own laptop has the same problem I i do see the connection drops at home.
strange thing is , aim comming to conclusion that windows 7 is the angry evil in this one but why after a weekend that we did change power?
A network Cisco guy is doing the config of the Cisco's and enterpise stanaards.
i looked of course on the internet and talking about disable ipv6 but no luck.
I see some about disable power options to take the lan out of the loop of that , trying that next week , but why 8 pc's at the same week?
it started after the wekend of 26 march.

aim lost.
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Sounds like a driver issue.  Try downloading new drivers.  Or using a different network adapter.
ottenshxSysadmin

Author

Commented:
Installed the new driver and on 1 pc installed a PCI network card , same problem , it take a while for comming back as the problems accours 1 or 2 times a day .
(and its very busy)
Sysadmin
Commented:
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ottenshxSysadmin

Author

Commented:
At least we have an answer and problem solved .
this kind of hardware things is so difficult that it is hard to track from a website , so for other guys its a reason to think of if the situation is particully the same.
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