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Three out of four lights on router



 
 
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  #1  
Old March 17th 06, 06:44 AM posted to uk.telecom.broadband
Chris
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Posts: 151
Default Three out of four lights on router

Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router
are on.
Why isn't the fourth?
(It does come on when that computer is powered up.)
--
Chris
  #2  
Old March 17th 06, 07:06 AM posted to uk.telecom.broadband
jpd
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Posts: 3
Default Three out of four lights on router


"Chris" ] wrote in message
]...
Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router
are on.
Why isn't the fourth?
(It does come on when that computer is powered up.)


it might help if you tell us the make and model of the router...


  #3  
Old March 17th 06, 07:11 AM posted to uk.telecom.broadband
poster
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Posts: 1,542
Default Three out of four lights on router

On 17 Mar 2006 06:44, Chris ] wrote:

When they are all powered off, three of the four lights on the router
are on. Why isn't the fourth?


On a Dell here, the ethernet card (and other parts) are still powered
even when PC is "off" but on a Gateway PC, the ethernet card is not
powered (even if the rest is). As someone in a thread about noise
from a PC power supply indicated, there is often power from PSU,
unless you have (as some PCs do) a rocker switch at the back, to
stop mains input, and front-panel switch is not the whole story!!


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  #4  
Old March 17th 06, 07:22 AM posted to uk.telecom.broadband
NoNeedToKnow
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Posts: 19
Default Three out of four lights on router

"jpd" wrote:

"Chris" ] wrote in message
]...
Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router
are on.
Why isn't the fourth?
(It does come on when that computer is powered up.)


it might help if you tell us the make and model of the router...


wot?!? dont you mean the details of the 4 PCs to see whats similar
about the three that cause lights "on" against the one that doesnt
  #5  
Old March 17th 06, 07:41 AM posted to uk.telecom.broadband
Bob Eager
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Posts: 2,472
Default Three out of four lights on router

On Fri, 17 Mar 2006 06:44:31 UTC, Chris ] wrote:

Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router
are on.
Why isn't the fourth?
(It does come on when that computer is powered up.)


All but one of the PCs probably have a 'wake on LAN' feature, which
means that part of the circuitry (specifically the network interface) is
powered all of the time. This is so that the PC can be brought out of
standby by certain LAN activity.

So, for those PCs, the router is seeing an active LAN connection, and
puts the light on.

--
[ 7'ism - a condition by which the sufferer experiences an inability
to give concise answers, express reasoned argument or opinion.
Usually accompanied by silly noises and gestures - incurable, early
euthanasia recommended. ]
  #6  
Old March 17th 06, 09:40 AM posted to uk.telecom.broadband
Adrian A
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Posts: 45
Default Three out of four lights on router

jpd wrote:
"Chris" ] wrote in message
]...
Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router
are on.
Why isn't the fourth?
(It does come on when that computer is powered up.)


it might help if you tell us the make and model of the router...


How would that help? The answer is the pcs are not _powered_ off, they are
just off.
--
Adrian A


  #7  
Old March 17th 06, 10:10 AM posted to uk.telecom.broadband
Paul
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Posts: 17
Default Three out of four lights on router


"Chris" ] wrote in message
]...
Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router are
on.
Why isn't the fourth?
(It does come on when that computer is powered up.)
--
Chris


Perhaps it has wake on LAN enabled in the bios.


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*** Encrypt your Internet usage with a free VPN account from http://www.SecureIX.com ***
  #8  
Old March 17th 06, 11:51 AM posted to uk.telecom.broadband
R. Mark Clayton
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Posts: 699
Default Three out of four lights on router


"Chris" ] wrote in message
]...
Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router are
on.
Why isn't the fourth?
(It does come on when that computer is powered up.)
--
Chris


IME three of your PC's keep the LAN card partly powered when switched off
and the other doesn't.

I bet you that if you switch the PC's off at the wall the lights will go
out.


  #9  
Old March 17th 06, 02:00 PM posted to uk.telecom.broadband
Chris
external usenet poster
 
Posts: 151
Default Three out of four lights on router

In article , Paul
writes
"Chris" ] wrote in message
]...
Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router are
on.
Why isn't the fourth?
(It does come on when that computer is powered up.)


Perhaps it has wake on LAN enabled in the bios.


Tried it with and without that - made no difference.
--
Chris
  #10  
Old March 17th 06, 02:01 PM posted to uk.telecom.broadband
Chris
external usenet poster
 
Posts: 151
Default Three out of four lights on router

In article , R. Mark
Clayton writes
"Chris" ] wrote in message
]...
Four machines are plugged into the router.
When they are all powered off, three of the four lights on the router are
on.
Why isn't the fourth?
(It does come on when that computer is powered up.)


IME three of your PC's keep the LAN card partly powered when switched off
and the other doesn't.
I bet you that if you switch the PC's off at the wall the lights will go
out.


Well that is certainly true.
--
Chris
 




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