Hi, I suggest you try the following steps to troubleshoot the issue. 1. Temporarily uninstall firewall or antivirus program on the machine. 2. Upgrade the NIC driver to the latest one. 3. Check this issue in Safe Mode with Networking and Clean Boot. Regards, Sabrina TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Sabrina TechNet Community Support

We recently updated 300 desktops from Windows XP x86 to Windows 7 x64 and are noticing and overall network slowness across all subnets and sites. Our network core is made-up of Cisco Nexus 5548 and Cisco 3900 series routers and all IDFs are connected over 10GB fiber and very fast high-end Cisco switches. Is Windows 7 just noisier or somehow placing heavier loads on the network? The new clients are much faster and have many times the RAM than the old XP boxes so all fo this is a little strange and unexpected. Has anyone else noticed this in a 2008R2 Domain?

Hi, I suggest you try the following steps to troubleshoot the issue. 1. Temporarily uninstall firewall or antivirus program on the machine. 2. Upgrade the NIC driver to the latest one. 3. Check this issue in Safe Mode with Networking and Clean Boot. Regards, Sabrina TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Sabrina TechNet Community Support

Hi, How are you? I would appreciate it if you could drop me a note to let me know the status of the issue. If you have any questions or concerns, please feel free to let me know. I am happy to be of further assistance. :) Regards, Sabrina TechNet Subscriber Support If you are TechNet Subscription user and have any feedback on our support quality, please send your feedback here.Sabrina TechNet Community Support