Ensure that the network switch or switches that all of the affected computers are connected to are at least of Gigabit speed and are in fact switches, not hubs.
A Netgear Prosafe Gigabit ethernet switch with the correct number of ports (ie. 8 port) is recommended if replacement or installing a new switch is required. If necessary, obtain a picture of the physical network connections of the network in question for CAM support to review.
The assumption is that for new Windows 7/8 PCs, the network adapter installed by the vendor (ie. Dell) is a gigabit adapter and that when booted for the first time on the installed network, the PC’s network adapter will Auto-sense the correct speed of the connected switch.
Verify the correct speed setting: Open the Windows Network and Sharing Center, and click on Connections. The Ethernet Status window will be displayed.
The Connection Speed should indicate 1.0 Gbps if the PC is properly configured on a Gigabit network.
There have been instances where an ethernet adapter on a PC was manually changed to another setting, such as 100 Mbps, etc. If this is the case, the network adapter will not perform as expected.
If the speed setting is in question and the network adapter needs to be set to Auto-sense, do the following:
- Right click on the network icon in the system tray (next to clock), and select, “Open Network and Sharing Center.”
- Click “Change Adapter Settings” on left side of this window.
- Right click on the Ethernet connection and select Properties. . This should be clearly indicated. Do not click on the Wireless or any other connection listed.
- Click the “Configure” button, then “Advanced” tab’
- Find the “Speed and Duplex” property in the list box. Select it.
- The value should be “Auto Negotiation” or similar. If not set to Auto Negotiate and some other value such as 100 mbps Full Duplex is selected, change this to “Auto Negotiate.”
Following these steps will help insure that the Windows 7/8 PC has the correct network speed setting.