Troubleshooting a network connection

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bobrics

Hi,

I have a rather simple question. I am troubleshooting my network. On a
network card there are two LED's representing the existance of a link
and internet activity. More precise, there's a device which is
misbehaving so I am trying to identify the problem. When I connect to
internet while NOT using a device - 1st LED is always green and
constant. The 2nd LED is blinking. So I assume the blinking LED is an
activity LED. Am I correct here?

For the misbehaving device, the first LED is NOT on. However, the 2nd
LED is blinking as well. What does that mean in your oppinion?
On the device, there're 3 LED's: all are on and green (link,
power and polarity). Also, when I connect the device, the computer
(which is directly connected to it via a cross over cable - the right
cable for sure) sends packets, but does not receive anything back.
Another set of LED's on the device is showing some activity WHEN the
computer is sending a packet to it! So, it looks like there is a
connection between the device and a computer, but my computer NIC's 1st

LED is NOT on. Why?


Thank you
 
bobrics said:
Hi,

I have a rather simple question. I am troubleshooting my network. On a
network card there are two LED's representing the existance of a link
and internet activity. More precise, there's a device which is
misbehaving so I am trying to identify the problem. When I connect to
internet while NOT using a device - 1st LED is always green and
constant. The 2nd LED is blinking. So I assume the blinking LED is an
activity LED. Am I correct here?

For the misbehaving device, the first LED is NOT on. However, the 2nd
LED is blinking as well. What does that mean in your oppinion?
On the device, there're 3 LED's: all are on and green (link,
power and polarity). Also, when I connect the device, the computer
(which is directly connected to it via a cross over cable - the right
cable for sure) sends packets, but does not receive anything back.
Another set of LED's on the device is showing some activity WHEN the
computer is sending a packet to it! So, it looks like there is a
connection between the device and a computer, but my computer NIC's 1st

LED is NOT on. Why?


Thank you
Click to expand...
1. check your cable
2. boot to safe mode and remove references for your NIC from device manager
,then reboot and let windows reinstall the card (sure you have correct
drivers? )

generally you will see a "green" LED for a good connection (not all cards
are the same) a blinking "yellow" may mean "trying" to connect
 
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