POE576U-4MP-N-R datasheet(44/45 Pages) PHIHONG

44 / 45 page

Phihong USA Corporation • 47800 Fremont Blvd. Fremont, CA 94538 • Tel: 1.510.445.0100 Fax: 1.510.445.1678

www.phihong.com or www.midspans.com

-44-

Troubleshooting

If problems occur with the midspan, check the following troubleshooting table:

The troubleshooting solutions provided can only solve minor problems. If your problem is not listed,

please contact our Phihong directly for further technical assistance. All up-to-date contact information

can be found on our website www.phihong.com or www.midspans.com.

Troubleshooting

Problem

Possible Solutions

Midspan does not power up

1. Ensure that the AC ppower cord is connected

2. Ensure that the AC power cord is in good

condition

3. If solutions 1 and 2 are true; then disconnect

the AC power cord and reconnect. Observe

the Port LEDs to verify a proper power up.

Port LEDs do not illuminate “Green”

1. The Port may be disabled and needs to

be enabled using either the web or SNMP

interfaces. Ensure that the Port in question is

Enabled

2. Ensure the NIC Port is properly connected to

the Network

The web interface won’t open or cannot

contact the unit via SNMP

Use the default IP address 10.0.2.5 and connect

the midspan to the PC directly. Refer to the

section TFTP uploading (Power-On Reset Entry

Mode) for more details. If 10.0.2.5 will not open

the correct webpage, check the network for any

possible faults.

The web does not update the port status

Execute System Tools » Reboot

SNMP can’t make contact

Check to see if the community strings are correct

For all other issues, please verify the following:

1. Make sure the power is applied to the midspan

2. Make sure the network ethernet cable is not

connected to the POE Data and Power port

3. Make sure the Data and Power cable is not

connected to the Ethernet (NIC) power

4. Ensure the proper type of Ethernet cable is

used. Do not use a crossover type of Ethernet

cable.

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