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6. Troubleshooting
This section is intended to help you solve some common problems
encountered while using the MIL-SM2401M switch series.

Incorrect connections

The switch auto-detects the polarity and direction of the UTP cable
attached. If no link I seen, then check the following:
Faulty or loose cables
Look for loose or obviously faulty connections. If they appear to be
OK, make sure the connections are snug. If that does not correct
the problem, try different cables.
Non-standard cables
Non-standard and miswired cables may cause numerous network
collisions and other network problems. This can seriously impair
network performance. A category 5 cable tester is a recommended
tool for every network installation.
Improper Network Topologies
It is important to make sure that you have a valid network topology.
Common topology faults include excessive cable length and too
many repeaters or hubs between end nodes. In addition, you should
make sure that your network topology contains no data path loops.
Between any two ends nodes, there should be only one active
cabling path at any time. Data path loops will cause broadcast
storms that will severely impact your network performance.