A user does not have network connectivity. While testing the cable the technician receives the below reading on the cable tester: 1-----------1 2-----------2 3-----------3 4-----------4…

The correct answer is D. Redo the cable's connectors. The cable tester output shows a straight-through connection (pin 1 to 1, 2 to 2, etc.), which appears correct for a standard Ethernet cable. However, since the user still has no connectivity, the RJ-45 connectors are the likely culprit - a poorly crimped connector can pass a…

Network troubleshooting

Question

A user does not have network connectivity. While testing the cable the technician receives the below reading on the cable tester:

1-----------1 2-----------2 3-----------3 4-----------4 5-----------5 6-----------6 7-----------7 8-----------8 Which of the following should the technician do NEXT?

Options

ACable is a crossover, continue troubleshooting
BPin 3 is not used for data, continue troubleshooting
CPin 3 is not used for data, replace the NIC
DRedo the cable's connectors

How the community answered

(25 responses)

A
4% (1)
B
4% (1)
D
92% (23)

Explanation

The cable tester output shows a straight-through connection (pin 1 to 1, 2 to 2, etc.), which appears correct for a standard Ethernet cable. However, since the user still has no connectivity, the RJ-45 connectors are the likely culprit - a poorly crimped connector can pass a basic continuity test while still making intermittent or unreliable contact. The correct next step is to redo (re-crimp) the connectors. Choices B and C are wrong because pin 3 IS used for data in Ethernet (it carries the receive+ signal). Choice A is wrong because the output clearly shows a straight-through, not a crossover, wiring pattern.

Topics

#cable testing#copper cabling#RJ45 crimping#T568

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