Netgear GS510TPP Hardware Installation Guide - Page 27

ProSAFE 8-Port Gigabit Smart Managed Switch with PoE+ and 2 SFP Ports Table 3. Troubleshooting Chart (Continued) Sympton Cause Solution Combined speed/activity LED or A network loop (redundant path) was an individual speed LED and an created. individual activity LED are blinking continuously on all connected ports and the network is disabled. Break the loop by ensuring that only one path exists from any networked device to any other networked device. After you connect to the switch web management interface, you can configure the Spanning Tree Protocol (STP) to prevent network loops. A unit is linked to a stack but does The stacking ports of the new unit are Remove the unit from the stack. Use not join the stack. configured differently from the stack, or the the web management interface to unit is configured as a standalone unit. configure the unit as a stackable unit, with combo links used as the stacking ports. Additional Troubleshooting Suggestions If the suggestions in the troubleshooting chart do not resolve the problem, see the following troubleshooting suggestions: • Network adapter cards. Make sure that the network adapters that are installed in the computers are in working condition and the software driver was installed. • Configuration. If problems occur after you alter the network configuration, restore the original connections and determine the problem by implementing the new changes, one step at a time. Make sure that cable distances, repeater limits, and other physical aspects of the installation do not exceed the Ethernet limitations. • Switch integrity. If necessary, verify the integrity of the switch by resetting it. To reset the switch, disconnect the AC power from the switch and then reconnect the AC power. If the problem continues, contact NETGEAR technical support. For more information, visit the support website at support.netgear.com. • Autonegotiation. The RJ-45 ports negotiate the correct duplex mode, speed, and flow control if the device at the other end of the link supports autonegotiation. If the device does not support autonegotiation, the switch determines only the speed correctly, and the duplex mode defaults to half-duplex. The Gigabit Ethernet ports negotiate speed, duplex mode, and flow control if the attached device supports autonegotiation. Troubleshooting 27