Step 4 Temporarily disable any virus-scanning software on the computer. See the Browser Stalls When Downloading CTC JAR
Files From Control Card, on page 50.
Step 5 Verify that the computer does not have two network interface cards (NICs) installed. If the computer does have two NICs,
remove one.
Step 6 Restart the browser and log onto the system.
Unable to Verify the NIC Connection on Your PC
Problem When connecting your PC to the system, you are unable to verify that the NIC connection is working
properly because the link LED is not illuminated or flashing.
Possible Cause The CAT-5 cable is not plugged in properly.
Solution Confirm that both ends of the cable are properly inserted. If the cable is not fully inserted due to a
broken locking clip, the cable should be replaced.
Possible Cause The CAT-5 cable is damaged.
Solution Ensure that the cable is in good condition. If in doubt, use a known-good cable. Often, cabling is
damaged due to pulling or bending.
Possible Cause Incorrect type of CAT-5 cable is being used.
Solution If connecting directly to your laptop, a PC, or a router, use a straight-through CAT-5 cable. When
connecting the chassis to a hub or a LAN switch, use a crossover CAT-5 cable. For details on the types of
CAT-5 cables, see the Crimp Replacement LAN Cables, on page 60.
Possible Cause The NIC is improperly inserted or installed.
Solution If you are using a Personal Computer Memory Card International Association (PCMCIA)-based NIC,
remove and reinsert the NIC to make sure the NIC is fully inserted. (If the NIC is built into the laptop or PC,
verify that the NIC is not faulty.)
Possible Cause The NIC is faulty.
Solution Confirm that the NIC is working properly. If you have no issues connecting to the network (or any
other node), then the NIC should be working correctly. If you have difficulty connecting a to the network (or
any other node), then the NIC might be faulty and needs to be replaced.
Verify PC Connection to the NCS (ping)
Problem The TCP/IP connection was established and then lost.
Possible Cause A lost connection between the PC and the system.
Solution Use a standard ping command to verify the TCP/IP connection between the PC and the card. A ping
command should work if the PC connects directly to the control card or uses a LAN to access the control
card. Complete the Ping the NCS, on page 45.
Ping the NCS
SUMMARY STEPS
1. Display the command prompt:
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
45
General Troubleshooting
Unable to Verify the NIC Connection on Your PC
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