6-2 CHAPTER 6: WINDOWS 3.X TROUBLESHOOTINGDiagnostic tests are divided into three groups:n The Group 1 tests check the physical components, connectors,and circuitry on the NIC.n The Group 2 Network Loopback Test (for the 3C509B-TPC andCOMBO NICs only) checks to see if the NIC can transmit andreceive data through the coaxial transceiver.n The Group 3 test (the Echo Exchange Test) tests to see if theNIC can transmit and receive data while on the network.If the NIC passes the group tests successfully, the NIC isfunctioning correctly. If the problem remains, look at cabling,software, driver configuration, and issues that can affectnetwork functionality.Starting the DOS Configuration and Diagnostic ProgramFollow these steps to run the Configuration andDiagnostic Program:1 Boot to DOS. (Use a DOS diskette.)2 Insert EtherDisk diskette 2 in drive A.3 Run the installation program. Enter:a:installThe main menu is displayed, as shown in Figure 4-1.4 Select Configuration and Diagnostic Program andpress Enter.If multiple NICs are installed, each NIC is listed.5 Select the NIC you want to test and press Enter.You can also run the tests from the command line. At the systemprompt, enter:3c5x9cfg runRunning the Group 1 TestsGroup 1 tests evaluate the physical components of the NIC.A Group 1 test failure can indicate a faulty NIC.For a description of each Group 1 test, press F1 to access Help.In the Help screen, tab to the Index button and press Enter.Use the arrow keys to move through the Index listings. SelectTest Definitions and press Enter.