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TROUBLESHOOTING

Troubleshooting Chart

Symptom

Action

 

 

LED Indicators

 

 

 

Link LED is Off

• Verify that the Barricade and attached device are

 

powered on.

 

• Be sure the cable is plugged into both the

 

Barricade and the corresponding device.

 

• Verify that the proper cable type is used and that

 

its length does not exceed the specified limits.

 

• Be sure that the network interface on the

 

attached device is configured for the proper

 

communication speed and duplex mode.

 

• Check the adapter on the attached device and

 

cable connections for possible defects. Replace

 

any defective adapter or cable if necessary.

 

 

Network Connection Problems

 

 

Cannot Ping the

• Verify that the IP addresses are properly

Barricade from

configured. For most applications, you should

the attached

use the Barricade’s DHCP function to

LAN, or the

dynamically assign IP addresses to hosts on the

Barricade cannot

attached LAN. However, if you manually

Ping any device

configure IP addresses on the LAN, verify that

on the attached

the same network address (network component

LAN

of the IP address) and subnet mask are used for

 

both the Barricade and any attached LAN

 

devices.

 

• Be sure the device you want to Ping (or from

 

which you are Pinging) has been configured for

 

TCP/IP.

 

 

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SMC Networks SMC7404BRA EU manual