I have been wrestling with a problem for a few weeks now. My set-up here at home is that I have a linux pc and a vista dell laptop which are both directly connected to a router and then to the internet. THe laptop is about 8 months old and has given my decent performance on the internet (which is 8Mbps). That was until about 3 weeks ago when things slowed down considerably. I have no idea why it has slowed down.Download speeds to my Linux PC are consistent at about 6600Kbps. Vista now manages c.150Kbps when I start up firefox (which has about a dozen tabs to load) to a miserable 10Kbps when browsing around. It is now getting intolerable. When I move a bunch of files between the Linux PC and the Vista laptop I get a thtoughout of 13Mbps. The above has led me to concentrate on the Vista laptop's interaction with the internet at the sole problem that needs addressing.Here is what I have done:1. I am confident that I have no virus or spyware etc.2. I have monitored the tcp connections via tcpview and see nothing awry currently (I did however stop some peer-to-peer programs that were there and sharing as a side effect from installing BBC iPlayer)3. I am using NetMeter to monitor performance - this is where the stats come from above4. I have disabled autotuning on the interface5. I have disabled QoS on the interface6. I have disabled at startup all chat programs etc.7. I have stopped the Windows Defender service8. I have no anti-virus, spyware or firewall sw running. (AFAIK)Anyone have any ideas pls?Happy to post any config details, just tell me what to type to get them.Thanks a lot

Hi, Regarding this networking performance issue, it is necessary to enable network monitor and performance monitor to perform analysis/troubleshooting. However, please understand that it could be time consuming to analyze these trace logs. Also, forum is not the best resource to troubleshoot this kind of issue. Id like to recommend that you contact Microsoft Customer Support Service for assistance. The support professionals there can provide one-one instant support for you so that the issue can be resolved more efficiently. To obtain the phone numbers for specific technology request please take a look at the web site listed below:http://support.microsoft.com/default.aspx?scid=fh;EN-US;PHONENUMBERS Before that, here are some suggestions that you could perform to troubleshoot the issue: 1. Refer to the following KB article to reset IE7, and then use IE7 to download file from the Internet and check the result:How to optimize or reset Internet Explorer 7http://support.microsoft.com/kb/936213/ Additional Information:How to troubleshoot Internet Explorer 7 issues in Windows Vistahttp://support.microsoft.com/kb/936215 2. If the issue persists, restart the Windows Vista and log into Safe Mode with Networking to check the result.For more information, please refer to the KB article 936214 (http://support.microsoft.com/kb/936214/) 3. If SP1 has not been installed, install the Windows Vista SP1 on the computer. Thank you for your understanding and cooperation.