Black Box LRA005A-R2 - Manual (Page 82)

ASYNC ROUTER AR-P, AR-5, AND SYNC ROUTER USER’S MANUAL
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Appendix C: Troubleshooting
Use this appendix to resolve network problems during Router installation or operation.
We strongly recommend that you perform the ping tests described in Chapter 6.
There are several ways to use the information in this appendix:
• Use the LED descriptions to quickly determine which interface that the problem is occurring on.
• Use Router commands to discover more about your particular problem. Review the brief list of
Router commands that are generally useful for solving network problems. Also refer to the
complete descriptions in Chapters 2, 3, and 4 of the Reference Manual, which starts on page 137.
• Using a description of your problem or an error message, look for a match in this appendix:
- Initial configuration/start-up problems
- Operating problems
- Client problems
If you determine that the Router requires repair, refer to Section C.6.
Here is a list of common problems with the section numbers to look up for solutions:
• Initial configuration/start-up problems (Section C.3)
- Router cannot start—LEDs stay dark (Section C.3.1)
- Router cannot start—LEDs stay lit (Section C.3.2)
- Prompt is not displayed (Section C.3.3)
- Root password does not work (Section C.3.3)
- IP hosts on Ethernet cannot telnet to the Router (Section C.3.5)
- Cannot save configuration (Section C.3.6)
- Modem will not connect to remote modem (Section C.3.8)
• Operating problems (Section C.4)
- Cannot communicate with remote host (IP only) (Section C.4.1)
- Connection drops after a few seconds (Section C.4.2)
- Connection drops after a few hours (Section C.4.3)
- Constant remote dialup (Section C.4.4)
- NetWare servers are not displayed on remote host
- Unable to attach to a remote NetWare server (Section C.4.5)