Unstable (Very) Ethernet Connection
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Alexidrian
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Dct35 -
Dct35 -
Hello,
I have a big problem with my computer. Recently, I switched to a wired Ethernet connection with my desktop in my university residence (the desktop that I brought at the end of the holidays to replace my laptop).
This is the first time my desktop is connected via Ethernet, and the connection is not stable at all; it's super slow, and connections take a long time.
However, I plugged it into another socket, and it worked normally.
But what makes me think that my PC might not be working properly is that sometimes it doesn't detect the Ethernet cable when I plug it in, and by the way, the light that is supposed to be green is constantly orange.
I don't understand anything, I'm fed up. Could it just be the socket (every second time I plug in the laptop, the connection is slow too, but sometimes it's normal) and in any case, its Ethernet light is green.
If you have the slightest idea of a starting point to help me or at least be sure that it’s not my PC (I've called my ISP three times, and they supposedly do something without changing anything....)
Thanks so much if you can help me!
PS: My graphics card is a Realtek PCIe GBE Family controller integrated into an Asus P8P67 Rev3.0
Configuration: Windows 7 / Opera 9.80
I have a big problem with my computer. Recently, I switched to a wired Ethernet connection with my desktop in my university residence (the desktop that I brought at the end of the holidays to replace my laptop).
This is the first time my desktop is connected via Ethernet, and the connection is not stable at all; it's super slow, and connections take a long time.
However, I plugged it into another socket, and it worked normally.
But what makes me think that my PC might not be working properly is that sometimes it doesn't detect the Ethernet cable when I plug it in, and by the way, the light that is supposed to be green is constantly orange.
I don't understand anything, I'm fed up. Could it just be the socket (every second time I plug in the laptop, the connection is slow too, but sometimes it's normal) and in any case, its Ethernet light is green.
If you have the slightest idea of a starting point to help me or at least be sure that it’s not my PC (I've called my ISP three times, and they supposedly do something without changing anything....)
Thanks so much if you can help me!
PS: My graphics card is a Realtek PCIe GBE Family controller integrated into an Asus P8P67 Rev3.0
Configuration: Windows 7 / Opera 9.80
2 réponses
Hello,
try to force the speed of your network card to 10Mbit/s half duplex.
Network and Sharing Center, change the card settings, the big configure button then advanced and see if you have the option for speed and duplex.
And ... There you go!
try to force the speed of your network card to 10Mbit/s half duplex.
Network and Sharing Center, change the card settings, the big configure button then advanced and see if you have the option for speed and duplex.
And ... There you go!
Dct35
You are my hero. Thank you ????????
So the indicator didn't turn green but actually went completely off, however my connection seems better and I only see green in the diagnostics of my ISP's software!!
I hope it stays this way and that the connection will be decent again (it seems more or less okay for now)
By the way, can you explain to me what I just did?
I hope it stays this way and that the connection will be decent again (it seems more or less okay for now)
By the way, can you explain to me what I just did?
Already?
At least you understand quickly :-)
Actually, you forced (disabled) the speed negotiation with the switch.
I think the negotiation is going poorly or the cabling is not suited for 100M bit/s.
If it's the cabling, the network is only made for 10 and you are trying to work at 100, that causes errors.
If it's the negotiation: one side goes into half duplex and the other into full duplex, that causes collisions and packet retransmissions; the more traffic increases, the more retransmissions increase.
To differentiate between the two problems, you can try some pings:
small size pings (the -l parameter of the ping in Windows) should always go through, the default minimum is 32.
If you switch to 100 or 1500 bytes for the -l parameter
for example ping 8.8.8.8 -l 1000 and if there are many more losses than -l 32, it's that the cabling is of poor quality.
For duplex mode, an FTP transfer is needed, for instance, to highlight the fault.
At least you understand quickly :-)
Actually, you forced (disabled) the speed negotiation with the switch.
I think the negotiation is going poorly or the cabling is not suited for 100M bit/s.
If it's the cabling, the network is only made for 10 and you are trying to work at 100, that causes errors.
If it's the negotiation: one side goes into half duplex and the other into full duplex, that causes collisions and packet retransmissions; the more traffic increases, the more retransmissions increase.
To differentiate between the two problems, you can try some pings:
small size pings (the -l parameter of the ping in Windows) should always go through, the default minimum is 32.
If you switch to 100 or 1500 bytes for the -l parameter
for example ping 8.8.8.8 -l 1000 and if there are many more losses than -l 32, it's that the cabling is of poor quality.
For duplex mode, an FTP transfer is needed, for instance, to highlight the fault.