CHAPTER 5

TROUBLESHOOTING

5.1TROUBLESHOOTING THE HSIM-W87

Problems in setup can occur in hardware, software, or firmware setups. The following sections detail some of the problems encountered and the possible solution. If a problem persists, contact the Cabletron Systems Global Call Center. Refer to Section 1.7.

5.1.1Hardware Troubleshooting

No LEDs on

Check the host platform to see if it is powered up.

Check that the HSIM-W87 has been connected correctly, that the connectors have no bent pins.

Link (LNK) LED is OFF

The WAN interface is not configured for operation. Power is off or the HSIM-W87 is not connected properly.

Link (LNK) LED is RED — The WAN interface is configured, but there is no signal indicating that a valid connection is present on the WAN interface.

Check that the device at the other end of the segment is powered up.

Use management to make sure that both WAN interfaces, local and remote, are configured correctly.

Check to ensure that the correct cable is being used.

Check to ensure that the cable has continuity and is installed correctly. The cabling between the HSIM-W87 and the M13 should be checked, and the cabling between the M13 and the devices at the far end should also be checked.

Check with the WAN Service Provider to ensure that the circuit has been configured by them and is active.

HSIM-W87 User’s Guide

5-1

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Cabletron Systems manual Chapter Troubleshooting, Troubleshooting the HSIM-W87, Hardware Troubleshooting