Cisco CISCO881W-GN-A-K9 Hardware Installation Guide - Page 47

Chapter 3 Troubleshooting Problems After First Startup Problems After First Startup Table 3-2 lists problems that could occur after the router has power for the first time. Table 3-2 Problems After First Startup Symptom Problem Solutions No link to an Ethernet device. (On Cisco 801, Cisco 802, and 802 IDSL routers, the LINK LED on the back panel is off. On Cisco 803 and 804 routers, the LKØ, LK1, LK2, or LK3 LED on the front panel is off. On the Cisco 804 IDSL router, the ETHERNET 1, 2, 3, or 4 LED on the front panel is off.) • A cable-related problem: Perform the following tasks in the following order: - Wrong cable. - Improperly connected cable. - Damaged cable. • If you supply your own cable, make sure you are using the right type of cable (either straight-through or crossover). Check the cable information in Table 2-2 in Chapter 2, "Installation." • Check specifications in Table B-13 and Table B-14 in Appendix B, "Specifications and Cables," to make sure the cable complies. If it does not, replace it. • To make sure you have cabled the devices correctly, see Table 2-2 in Chapter 2, "Installation." • Make sure the connectors at both ends of the cable are securely seated. • Make sure the cable is not physically damaged. If it is, replace it. • Improperly set router HUB/NO HUB or TO HUB/TO PC button or hub equivalent of HUB/NO HUB button • To make sure you have set buttons correctly, see Table 2-2 in Chapter 2, "Installation." • Improperly functioning network interface card (NIC) on server, PC, or workstation. • Run the NIC diagnostic supplied by the vendor to make sure it is functioning properly. If it is not, replace it. • If the problem continues, call your Cisco reseller. No link to ISDN or IDSL network. (NT1, LINE, CH1, CH1 RXD, CH1 TXD, CH2, CH2 RXD, or CH2 TXD LED is off.) • If you have a Cisco 801 or 803 router in North America or in parts of Europe, you might need to connect the router to an external NT1 and connect the NT1 to an ISDN wall jack. • If outside of North America, contact your telephone service provider and ask if you must provide an NT1 and the ISDN U cable that connects the NT1 to the ISDN wall jack. In North America, you must provide an NT1 and the ISDN U cable. Connect NT1 as described in the "Connecting an ISDN Line to Cisco 801 and Cisco 803 Routers" section in Chapter 2, "Installation." 78-5373-04 Cisco 800 Series Routers Hardware Installation Guide 3-3