Windows 7 64bit Network Freezing

So, had a issue where my laptop which is running windows 7 64bit and the network was freezing copying large files.

On the laptop

• ipv4/ipv6
• virutalbox
• citrix access gateway plugin

The symptoms were large copies were freezing with 0kb/s

removed virutalbox and able to copy files again.

If i get time to investigate then look into if issue between CAG plugin and Virutalbox.

Update:

so the problem came back for some reason, also seems my virtualbox didn't uninstall correctly.

1. only did part..

http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/very-slow-200kbsec-file-copy-between-win7-machines/b8736b1b-0a91-4567-ba33-215084ffc906

a. Running as Administrator in Command Prompt, type: "netsh int tcp set heuristics disabled"

b. Next, follow the instructions that Amrita wrote above.

                  First enter: "netsh int tcp set global autotuninglevel=disabled" and reboot.

2. mucked around with the settings in intel network card properties (latest driver)

wmic “Invalid XSL format (or) file name.”

So on my windows 7 box trying to:

wmic product get /format:csv

produces a output:

Invalid XSL format (or) file name.

Located teh csv.xsl file in C:\windows\system32\wbem\en-US

Guessed that it was unable to locate the xsl format file...

so copied it to the local path and it worked !

Confirmed this with Process monitor :-(

It seems to be looking for the correct locale so I added a C:\windows\system32\wbem\en-US to C:\windows\system32\wbem\en-AU

since we all don't live in the US of A... :-|

Alternative options are:

I just copied to C:\windows\system32\wbem\en-US\*.xls to C:\windows\system32

Java Red Cross for Users

Users were experiencing a Red Cross for the applet, yet my administrative account was able to load the applet.

Looks like java or the installation process for java is not writing all the registry keys to HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CAFECA-00xx…..

In IE, Java has a catch all applet version – which will always work (aka the latest version)

clsid:8AD9C840-044E-11D1-B3E9-00805F499D93

But most java dude’s call specific versions of java (for example)

clsid:CAFEEFAC-0015-0000-0013-ABCDEFFEDCBA

The server(s) for some reason didn't have all the keys in classes root, where compared to my windows 7 desktop does.

I believe the install for some reason is writing the keys to HKCU instead of HKLM \classes...etc.

So fix is to add all the version to HKEY_LOCAL_MACHINE\SOFTWARE\Classes

http://pastebin.com/YhmwPTq7 contains my fix for 1.6u24 version

btw, Monitoring the registry when tick/untick the “use next generation java” in the java control panel, it just write all the entries to HKCU.