Troubleshooting 6-15NOTE: When you first install the adapter and power upthe computer, the LED will be lit, but the link beat isinactive. For the link beat to be active (enabled), youneed to have run the Group 3 test or have loaded thenetwork drivers.If you are experiencing any problems, first make sure thatyour hub complies with the 10BASE-T specifications.Then check the LED.n If the LED is on, the link beat is working.n If the LED is off, the link beat has not been establishedor there is a problem with the connection between theadapter and the hub.n If the LED is blinking, the polarity is reversed.SoftwareIf you have installed the adapter correctly and you stillexperience problems, check the software.Make sure that you have configured your computer forthe adapter. Refer to Chapter 2.Make sure that you have installed the correct drivers forthe network operating system you are running (refer toChapter 5).Additional InformationFor any problems not discussed in this chapter, refer toAppendix D, “Technical Support,” for information on3Com’s on-line technical services. 3ComFactsSM providestechnical tips and product information. Ask3ComSM andCardBoardSM provide software updates, drivers, technicaltips, and product information.
