Vista Tutorial - Network freezes /crashes when it's heavly used on Windows Vista

I am very sorry.
As you write, I thought this was a forum, where everybody could see the thread I was replying to.

This is the issue, that I'm talking about:
****************************************************
Network freezes /crashes when it's heavly used on Windows Vista
Hi

I have problems with several computers in my company that runs Windows Vista
Enterprise both with and without SP1.
The problem is that when a computer is genereting a lot of trafic on the
network card, it suddenly stops function.
The only way to restore network connection is to restarte the computer.

When the problem occure you will only manage to ping localhost and your own
IP addresse.
If you ping another server or computer you get "destination host
unreachable" and "reguest timed out" in random order.

Computers are mainly Dell D630 and D830, and the problem occur both on
wireless and wired networkcards.

The way I have managed to provoke the error is by copying three 3Gb files
from another computer/server and have installed Citrix Secure Access Client
for Vista.
Therefor i thought i might be the Citrix client that is the source of the
problem, but the problem still exist without the Citrix client, but it
dosen't happend that often.

I tried to disable the multicore option in BIOS, so the laptop only uses one
core. This seemed to help, but this could be because it dosn't push the
networkcard hard enough.

When copying this three files the resource Overview in Vista says it
transfers with 95-96 Mbps with multicore enabled
When copying this three files the resource Overview in Vista says it
transfers with 65-70 Mbps with multicore disabled

Following steps have also been tried without luck:

Antivirus has been uninstalled
Windows firewall has been deaktivated
Disabled autotuninglevel
Unchecked IPV6 on networkcards
Installed newest networkdrivers from Dell.
Clean install of Vista Enterprise with SP1


****************************************************

Find the hole thread on this link Network freezes /crashes when it's heavly used on Windows Vista

Cheers,
Jacob

vennervald,

Everyone can see this site and this section is shared with 50 other communities located here: Windows Vista Community: All featured and related communities This is better than using a newsreader or newsgroup because many people can pull there experiences together and allow others to later find solutions from search engines, it also allows better quality control and prevents the nonsence, spam and other things from coming here.

Newsreaders are old technology and nonexistent these days (dead) and newsgroups are now shared by forums as designed by Microsoft...You can get better support and help here or at some other community on the link above


Our Microsoft referral link is:
http://go.microsoft.com/fwlink/?LinkId=91557

If you want better answers and support post here: http://www.vistax64.com/general-discussion/



Steven

vennervald wrote:
Thank you for the very good explanation of your issue. From your
description, I believe your network hardware and/or possibly bandwidth is
the issue rather than anything on your local computers. Since this is a
business, you should get a competent networking professional on-site to see
what's going on. This isn't something you're going to be able to fix by
posting in a newsgroup or on a forum. Someone who knows what s/he is doing
and who can test the network throughput on-site is necessary.

Good luck.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!
FAQ - http://www.elephantboycomputers.com/#FAQ

To All,
The problem resides with the Citrix Access Gateway client and
uninstalling it does not fix it. I have fixed this issue on my Dell D630
laptop.
You will need to load the latest Citrix Access Gateway client version
8.1.56.7.
http://www.citrix.com/English/SS/dow...roductId=15005

This is the only thing that fixed the issue. I have not had a problem
since I loaded the new CAG client.
Thanks,
RayZ


--
RayZ
------------------------------------------------------------------------
RayZ's Profile: http://forums.techarena.in/member.php?u=50916
View this thread: http://forums.techarena.in/showthread.php?t=938979

http://forums.techarena.in

Thanks for your prompt reply.
We are experiencing this issue on 8 Vista laptops in the company and we have had the same error on more than four different networks, so I don't think the network setup has anything to do with this issue. The same networks works just fine when using XP or any other operating system.

/Jacob

vennervald wrote:
Possibly the IPv6 thing? Turn it off. I've also heard that turning off auto
tuning can help with network problems.

From an elevated cmd prompt:
netsh interface tcp show global [enter]

If the line Receive Window Auto-Tuning Level does not say ?disabled,? enter
this command:
netsh interface tcp set global autotuning=restricted [enter]

If this doesn?t help, do the whole process again, but this time substitute
this command:
netsh interface tcp set global autotuning=disabled [enter]

If it doesn?t work for you, and you feel the need to put things back the way
they were, you can type this command:
netsh interface tcp set global autotuning=normal [enter]

Other than that, I'm afraid I can't guess. Since you've determined that this
is an issue with the Vista operating system, if you don't get any answers
from the enterprise networking gurus (of whom I am not one), then since you
have a business you undoubtedly have a support contract with Microsoft. I
would use it. The enterprise-level support at Microsoft is excellent. Even
if you don't have a support contract, this cost of doing business would be
worth expending. Additionally, it might be useful to contact a local
enterprise-level networking firm to see if they have experienced similar
issues with Vista machines and if they have a solution. Of course those
paths won't be free, but this isn't a home user situation.

Good luck and I'm sorry I was unable to help you.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!
FAQ - http://www.elephantboycomputers.com/#FAQ

It is not a network configuration issue. This is a Citrix access gateway
client issue. Uninstalling the CAG client does NOT fix this issue. The
only way to fix it is to install the latest CAG client on Citrix's web
site.

http://www.citrix.com/English/SS/dow...roductId=15005

I have been running without any network issues for two weeks since I
have load the new CAG client.

RayZ


--
RayZ
------------------------------------------------------------------------
RayZ's Profile: http://forums.techarena.in/member.php?u=50916
View this thread: http://forums.techarena.in/showthread.php?t=938979

http://forums.techarena.in

Addendum - This just posted:

"To All,
The problem resides with the Citrix Access Gateway client and
uninstalling it does not fix it. I have fixed this issue on my Dell D630
laptop.
You will need to load the latest Citrix Access Gateway client version
8.1.56.7.
http://www.citrix.com/English/SS/dow...roductId=15005

This is the only thing that fixed the issue. I have not had a problem
since I loaded the new CAG client.
Thanks,
RayZ"

So since you say you have an identical setup to that of the OP, I suggest
you try his solution. Note that he says uninstalling the Citrix client
doesn't help.

For further details, you should contact Citrix. I'm sure you have a support
contract with them.

Malke
--
MS-MVP
Elephant Boy Computers - Don't Panic!
FAQ - http://www.elephantboycomputers.com/#FAQ

Thanks a lot RayZ.
This seems to have done the trick.

/Jacob

Hi all,

Would anybody be able to direct me to an up-to-date link/location of the Citrix thing as the one posted here does not seem to work. I am experiencing the same issue (Vista hangs when copying large files over the network) and seem to be unable to solve the problem having tried many solutions including MS hotfixes and disabling auto tuning.

Thank you!