Troubleshooting
This section is intended to help user solve the most common problems on the 8 10/100/1000Base-T with 1 1000Base-X SFP/RJ45 Combo port Web Managed Switch with.
Incorrect connections
The switch port can auto detect straight or crossover cable when link switch with other Ethernet device. For the RJ-45 connector should use correct UTP or STP cable, 10/100Mbps port use 2 pairs twisted cable and Gigabit 1000T port use 4 pairs twisted cable. If the RJ-45 connector is not correct pin on right position then the link will fail. For fiber connection, please notice that fiber cable mode and fiber module should be match.
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 a different cable.
Non-standard cables
Non-standard and miss-wired cables may cause numerous network collisions and other network problem, and can seriously impair network performance. A category-5 cable tester is a recommended tool for every 100Base-T network installation.
RJ-45 ports: use unshielded twisted-pair (UTP) or shield twisted-pair ( STP ) cable
for RJ-45 connections: 100Ω Category 3, 4 or 5 cable for 10Mbps connections or
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