Your Company upgrades its network to 100 Mbps. You remove the old network adapter and install a new 10/100 Mbps network adapter into a Windows 2000 Professional computer. You configure the TCP/IP protocol settings to be the same as they were for the previously installed network adapter.  
When you restart eh computer, however, you cannot access the network. You try to ping your network adapter’s TCP/IP address locally. You receive the following error message. “Request timed out.” Next, you try to ping 127.0.0.1 and receive the same error message.  
What must you do?（）

You purchase a USB board, ISDN terminal adapter for your Windows 2000 Professional portable computer. You plug the device in to the USB port. Plug and Play fails to detect the new device. You test the device on a Windows 2000 Professional desktop computer. You find that plug and play correctly detects the device. You want to resolve the problem so that you can use ISDN terminal adapter on your portable computer.  
What should you do?（）

You are the administrator of a small server based network. While installing Windows 2000 Professional on your computer, you configure the network adapter card for each computer to use TCP/IP and assign static IP setting information. During installation the setup detects and installs the 10/100 MBPS UTP only network adepter card on computers 6 & 8 and 10 MBPS/UTP combination adapter card on the other 7 computers. You accept the default settings for the network adapter card and finish installing the network adapter card. All computers are connected to 10/100 switch that has category 5 UTP cabling. After installation you find that computer 6 and 8 can communicate with each other. You want all 9 computers on your network to be able to communicate with each other.  
What should you do?（）