Ethernet LAN problem

Zangetsu

Zangetsu

I am the master of my Fate.
Hi all,

I was using internet on thursday morning till 12:30 am & disconnected net & went to sleep....

then after coming from office @7:30pm I found that my ethernet LAN
is not blinking (green + orange LED).it was totally in OFF state.

then I called up my cable operator.

he told:
1) Either the your endpoint is not getting signal (bcoz of wire break)
2) OR your mobo LAN is damaged.

Can u tell guys whats the problem.?
I think prob 2 has minimal chance...
 
asingh

asingh

Aspiring Novelist
It is highly probably it is his cable. Ask him to check. Tell him your board is fine. Lame of the cable operator.
 
OP
Zangetsu

Zangetsu

I am the master of my Fate.
asingh said:
It is highly probably it is his cable. Ask him to check. Tell him your board is fine. Lame of the cable operator.
Click to expand...

Even I m thinking of that

But I checked with switch from which my line is coming & asked another user his Sify broadband is working fine...

does it happen that a particular slot in switch is faulty....

Btw when does the mobo LAN is damaged(causes)?
also is it possible to check using some app whether my LAN is working or not?
 
asingh

asingh

Aspiring Novelist
Zangetsu said:
Even I m thinking of that

But I checked with switch from which my line is coming & asked another user his Sify broadband is working fine...

does it happen that a particular slot in switch is faulty....

Btw when does the mobo LAN is damaged(causes)?
also is it possible to check using some app whether my LAN is working or not?
Click to expand...

It can happen right. The cable from the last switch to your homes RJ45 connector could be damaged.
 
OP
Zangetsu

Zangetsu

I am the master of my Fate.
Ok guys here is the solution I am posting

The cable operator came to my house tested the wire with line tester
said its 100% ok.....

But I told him that when I switched on the PC the LAN LED was glowing for 1min atleast.

then he opened the Network Connection Properties...
& in advanced Tab there are property=value boxes

so he selected "Speed & Duplex"
in value it was "Auto Negotiation"

so he simply choose "10Mbps Half Duplex" and Cliked OK
...
Bingo the LAN LED started glowing...:bananana:
he told me that LAN is forcing the connection now...instead of auto negotiation....

Auto Negotiation is not working...

So,does that mean my I have force it always???? :-(

please clear my doubt on Speed & Duplex :?:
 
asingh

asingh

Aspiring Novelist
Can you not set the NIC manually to run at full duplex. You might face issues for voice transmission.
 
OP
Zangetsu

Zangetsu

I am the master of my Fate.
asingh said:
Can you not set the NIC manually to run at full duplex. You might face issues for voice transmission.
Click to expand...
???
cud u just elaborate the point...

now im using speed & duplex @10Mbps Full Duplex
the LAN also works in 10Mbps Half Duplex
but rest other options it doesn't work
such as 100Mbps Half & Full Duplex,1Gbps Full Duplex

..duplex duplex....i dont know this duplex????
 
Anish

Anish

Spectre
There are two types of communication:
Simplex and duplex.
Simplex is one way communication (you can only send or receive data through that one line.. of course.for receiving you must have another dedicated line. )
Duplex is two way communication(You can send as well as receive data on the same line)
Here, half duplex is you can send or receive at a particular instant of time.(i.e, you cannot simultaneously send/receive data.)
But in full duplex mode, you can send and receive data at the same time.
Some examples:
FM transmission is in simplex mode
As asingh said, Walkie Takie operates in half duplex mode
and Cellphones, POTS system operates in full duplex mode.
 
OP
Zangetsu

Zangetsu

I am the master of my Fate.
thanx Anish :doublethumb: for clearing my doubts.

@asingh: me too using 10Mbps full duplex.but my concern is by default it was
autonegotiation but ryt now its not working in auto negotiation.so is my mobo LAN card has become faulty????
 
OP
Zangetsu

Zangetsu

I am the master of my Fate.
asingh said:
Ya could be. But it is following correct protocols, so nothing to worry.
Click to expand...

ok...

now post#7 could be helpful to those who think that their LAN is dead & goes out to buy a new one before trying it in adapter settings :-o


Btw I checked in windows XP of my frnd PC..there was no such option of speed & duplex also in his Laptop with windows 7 home premium???
 
Anish

Anish

Spectre
^^ Yeah, I too dont have such options dude... Who is your ISP? is it some telecommunication companies(like bsnl, mtnl) or is it supplied by cable t.v operators?
 
mithun_mrg

mithun_mrg

Cyborg Agent
Autonegotiation 100 MBPS will work if u use a I/O Box Rs 200 approx Dlink and a patch cable to connnect from I/O box to ur PC this problem generally happens due to the Quality/Length of the Ethernet cable or Non Standard Crimping of RJ45

Regarding Speed & duplex setting can be found in every Lan Card
Right click the Local Area Connetion>Status>Properties>Configure(Right to the Adapter Name)>Advanced>Depending on ur driver-Link Speed/Media Type from there u can change the speed & Duplex in XP in win7 Network & Sharing center>Change Adapter Setting
 
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