Netgear XS712T User Manual

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XS712T Smart Switch
Troubleshooting Chart
The following table lists symptoms, causes, and solutions of possible problems.
Table 4.  Troubleshooting chart 
Symptom
Cause
Solution
Power LED is off.
No power is received.
Check the power cord connections and the connected 
device. Ensure that all cables used are correct and 
comply with Ethernet specifications.
Link LED is off or 
blinking.
Port connection is not 
working.
Check the crimp on the connectors and make sure that 
the plug is properly inserted and locked into the port at 
both the switch and the connecting device. Ensure that 
all cables used are correct and comply with Ethernet 
specifications. Check for a defective computer adapter 
card, cable, or port by testing them in an alternate 
environment where all products are functioning.
File transfer is slow, or 
performance degradation 
is a problem.
Half-duplex or full-duplex 
setting on the switch and 
the connected device are 
not the same.
Make sure that the attached device is set to 
autonegotiate.
A segment or device is 
not recognized as part of 
the network.
One or more devices are 
not properly connected, 
or cabling does not meet 
Ethernet guidelines.
Verify that the cabling is correct. Ensure that all 
connectors are securely positioned in the required 
ports. Equipment might have been accidentally 
disconnected.
ACT LED is blinking 
continuously on all 
connected ports, and the 
network is disabled.
A network loop 
(redundant path) has 
been created.
Break the loop by ensuring that there is only one path 
from any networked device to any other networked 
device. After you connect to the switch management 
interface, you can configure the Spanning Tree 
Protocol (STP) to prevent network loops.
Additional Troubleshooting Suggestions
If the suggestions in the troubleshooting chart do not resolve the problem, see the 
troubleshooting suggestions in this section.
Network Adapter Cards
Ensure that the network adapter cards installed in the computers are in working condition and 
the software driver has been 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. Ensure