Chapter 4: Troubleshooting4-6 6E122-26, 6E132-25, 6E123-26 and 6E133-25 User’s Guide4.3 TROUBLESHOOTING CHECKLISTIf the 6E12X-26 or 6E13X-25 is not working properly, refer to Table 4-4for a checklist of possible problems, causes, and recommended actions toresolve the problem.Table 4-4 Troubleshooting ChecklistProblem Possible Cause Recommended ActionAll LEDs are OFF.Loss of power to the6C105 chassis.Check the proper connectionof the power cable and itsaccess to a live outlet.6E13X-25 or 6E12X-26not properly installed. Check the installation.No LocalManagementPassword screen.Autobaud enabled. Butbaud rate has not yetbeen sensed.Press ENTER (RETURN)(may take up to four times).Terminal setup is notcorrect.Refer to Chapter 5 for propersetup procedures.Improper console cablepinouts.Refer to Appendix A forproper console port pinouts.Cannot contact the6E132-25 or6E122-26 fromin-bandmanagement.Improper CommunityNames Table.Refer to Chapter 5for Community Names Tablesetup.6E12X-26 or 6E13X-25does not have an IPaddress.Refer to Chapter 5 for IPaddress assignmentprocedure.Port is disabled. Enable port.No link to device. Check link to device.Port(s) goes intostandby for noapparent reason.6E12X-26 or 6E13X-25detects a loopedcondition.Review network design anddelete unnecessary loops.User parameters (IPaddress, Device andModule name, etc.)are lost when the6E12X-26 or6E13X-25 ispowered down orthe front panelRESET button ispressed.Mode switch (7), NVRAMReset, was changedsometime before eithercycling power orpressing the RESETbutton, causing theuser-entered parametersto reset to factory defaultsettings.Reenter the lost parametersas necessary. Call theCabletron Systems GCC ifproblem continues.
