Netgear GS305EPP User Manual - Page 88
PoE troubleshooting suggestions
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Gigabit Ethernet Plus Switches be different from the subnet used in your network. You might see the following message if you try to access the switch: The switch and manager IP address are not in the same subnet. To resolve this subnet conflict: 1. Disconnect the Ethernet cable between the switch and your network. 2. Shut down power to the switch. 3. Reconnect the Ethernet cable between the switch and your network. 4. Reapply power to the switch. The switch powers on. The network DHCP server discovers the switch and assigns it an IP address that is in the correct subnet for the network. PoE troubleshooting suggestions Here are some tips for correcting Power over Ethernet (PoE) problems that might occur on switches that support PoE: • Make sure that the PoE Max LED is off. If the PoE Max LED is solid amber, disconnect one or more PoE devices to prevent PoE oversubscription. • Make sure that the Ethernet cables are plugged in correctly. For each powered device (PD) that is connected to the switch, the associated PoE port LED on the switch lights solid green. If the associated PoE port LED lights solid amber, a PoE fault occurred and PoE halted because of one of the conditions listed in the following table. Table 6. PoE fault conditions and possible solutions PoE Fault Condition Possible Solution A PoE-related short circuit occurred on the port. The PoE power demand of the PD exceeded the maximum level that the switch permits. The maximum level is 15.4W for a PoE connection or 30W for a PoE+ connection. The problem is most likely with the attached PD. Check the condition of the PD or restart the PD by disconnecting and reconnecting the PD. The PoE current on the port exceeded the classification limit of the PD. The PoE voltage of the port is outside the range that the switch permits. Restart the switch to see if the condition resolves itself. Diagnostics and 88 Troubleshooting User Manual