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(OT) Putrid PC - Need help diagnosing evil network problem.

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David Navarro - 24 Jan 2004 19:28 GMT
Okey, I have a strange and hard to diagnose problem that's keeping me
away from EQ, and I hope that maybe the colossal minds in this NG can
shed some light on the causes.

The story so far:

I have a Mac and a PC on my desk. The PC is for games, the Mac for
everything else. They share a USB keyboard, mouse, and two monitors (one
for the Mac only, one shared) They are both connected to the internet
via a NetGear ADSL router, with no problems whatsoever for the last few
months. Until a few days ago...

Normally, I have both the PC and the Mac running 24 hours a day, either
idle or running SETI@home, but recently I started getting some pangs of
guilt about the wasted energy, and decided to go green. First, I started
letting the Mac go to Sleep, and found no problems whatsoever, so next I
tried Standby Mode on the PC. Then, the nightmare started.

Firstly, I wasn't able to actually wake it up, since it seemed unable to
find the USB keyboard (I'm sharing a USB keyboard and mouse with a KVM
switch. Works well if I'm careful at boot time), so I reset it. When it
came back up, it had stopped seeing the router. The OS (Windows XP Home)
claims there is nothing wrong with the network connection, and it's
happily reporting zero packets in and zero packets out. There is no
activity visible on the card itself, the lights are dead, but the
Hardware Manager tells me that the device is working properly. It cannot
ping the Mac or the router itself, and I cannot ping it from the Mac *or*
from the router. The port number on the router is not lit up anymore,
which means it's not getting any packets at all from the PC, but the
icon on the PC's system tray is that of a working connection, not the
red "disconnected" one.

I've pulled out and reset the Ethernet cables, and even connected it to
a different port in the router, in case that port had died for some
reason. I've reset the router. I have uninstalled the network card via
the Hardware manager and let Windows find it again (I haven't physically
pulled it out yet, though... leaving that for last). I have made sure
that all the TCP/IP settings are back to their last working
configuration. I'm out of things to try.

Any ideas? Thanks in advance for all input.

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Venerable Hanrahan, Storm Warden (Human), Fennin Ro
           
"No, I didn't waste my youth... and I hate myself for it."

Dies Deambulo - 24 Jan 2004 19:59 GMT
>Okey, I have a strange and hard to diagnose problem that's keeping me
>away from EQ, and I hope that maybe the colossal minds in this NG can
[quoted text clipped - 37 lines]
>
>Any ideas? Thanks in advance for all input.
XP home doesn't do well with networking I've heard.  So check to see
that you still have a network running.  If you can, go to a command
window (don't know if XP has one!) and do an ipconfig command.  It
should show the status of your network.  If you onlly see an address
of 127.0.0.1  then you only have a loop back in place.  
A second thing is to check your security settings.  I've seen virus
software kill networking but it usually comes back with a reboot.

If time is the 4th dimension, then money is the 5th dimension.
We are always concerned about dollars per hour for the space we occupy.
                                                                                        - Rod White
David Navarro - 24 Jan 2004 20:10 GMT
Quoth Dies Deambulo :

> XP home doesn't do well with networking I've heard.  So check to see
> that you still have a network running.  If you can, go to a command
> window (don't know if XP has one!) and do an ipconfig command.  It
> should show the status of your network.  If you onlly see an address
> of 127.0.0.1  then you only have a loop back in place.

It returns only the current TCP/IP settings... the local IP, the subnet
mask and the gateway as I configured them. There is no 127.0.0.1
loopback anywhere. Does ipconfig have a more verbose mode?

> A second thing is to check your security settings.  I've seen virus
> software kill networking but it usually comes back with a reboot.

I'm not running an antivirus (not using IE or OE keeps me pretty safe,
although I do an occasional checkup with Housecall. All clean so far),
and I didn't change my security settings previous to whatever killed the
network.

Thanks for the help.

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Venerable Hanrahan, Storm Warden (Human), Fennin Ro
           
"Let's torture the rat" -The Muppets Treasure Island

42 - 24 Jan 2004 20:30 GMT
> Quoth Dies Deambulo :
>
[quoted text clipped - 17 lines]
>
> Thanks for the help.

Try turing the machine right off, wait a few, and bring it back up.
Verify that the link light for the ethernet cable is on on your PC (if
it has one), and on your ADSL router (it had better have one!).

If you are using an onboard LAN port, pop into BIOS and ensure its
enabled. (It should be if its still showing up in windows, but it
doesn't hurt to check). If you've got multiple LAN ports (several
motherboards do these days), make sure you are in the right port.

If your lights are down, swap cables, swap router ports, etc. If that
doesn't resolve it remove your network adapter from the Device Manager,
reboot and reinstall it. If that doesn't resolve it get a new network card.

If your lights are up, pull up the command prompt (cmd), try pinging
both the Mac and the gateway. You can also trying pinging the PC from
the Mac from the OS X terminal command line.

Where does that get you?

-PS there is nothing flakey about the tcp/ip stack in XP Home. The
'flakiness' has to do with some of the arbitrary limits MS imposed on
the Home Edition to Windows File Sharing, and the security model imposed
on users to 'motivate' business users to purchase the Pro version.
David Navarro - 24 Jan 2004 22:53 GMT
Quoth 42 :

> Try turing the machine right off, wait a few, and bring it back up.
> Verify that the link light for the ethernet cable is on on your PC (if
> it has one), and on your ADSL router (it had better have one!).

The lights are dead on both ends.

> If you are using an onboard LAN port, pop into BIOS and ensure its
> enabled. (It should be if its still showing up in windows, but it
[quoted text clipped - 9 lines]
> both the Mac and the gateway. You can also trying pinging the PC from
> the Mac from the OS X terminal command line.

Cheers. Did all of the above previous to posting. The lights are down,
but I still tried pinging the PC from the Mac (and from the router's own
Ping interface). Not a sausage.

The network card is not onboard, but PCI, and as far as Windows can
diagnose, there's nothing wrong with it. :-/ I will replace it if it
comes to that, but I'd like to exhaust my options first.

> Where does that get you?

Nowhere fast. But thanks nevertheless :)

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Venerable Hanrahan, Storm Warden (Human), Fennin Ro
           
"He fell into the Masticator... Man, what
a way to go."

42 - 25 Jan 2004 00:01 GMT
> Quoth 42 :
>
[quoted text clipped - 29 lines]
>
> Nowhere fast. But thanks nevertheless :)

If you've swapped cables with a known good one, and swapped ports on
your router with a known good one and the lights are still dead at both
ends your ethernet port on your network card is dead. Its possible
you've got a broken wire in the jack itself, which would not affect
windows ability to determine that it is working correctly.

Until you've got link lights there is no reason to bother with network
preferences, pinging, etc. The *only* setting I've ever heard of that
can bugger up the actual link is the link speed and duplex options.
10mbps at half duplex through 100mbps at full duplex, but these have all
been reliably autosensed for many years now, and its highly unlikely
there is an issue with that, particularly since the connection was
working previously... and even if you set it wrong... assuming you've
got a dsl router that acts like a switch there is no 'wrong' setting
that simply wouldn't work.

The good news is a decent popular nic like the dlink dfe-530tx is very
inexepensive. Maybe 10 bucks.

Borrow the cable and router port from the Mac first... you won't bugger
up the Macs connection. Its a Mac ;) it'll figure it out. After that its
time for a new nic.

Good luck.
Wulfbones - 25 Jan 2004 04:48 GMT
>Quoth 42 :
<snip>
>Cheers. Did all of the above previous to posting. The lights are down,
>but I still tried pinging the PC from the Mac (and from the router's own
[quoted text clipped - 7 lines]
>
>Nowhere fast. But thanks nevertheless :)

When a Windows driver gets hung you sometimes need to remove the
hardware, reboot and delete the driver, reinstall the hardware and
then reinstall the driver before it reinstalls correctly. Try that
before buying a new network card, but then again network cards are
cheap. If you do buy a new one get a different model card if it is
from the same manufacturer. Not sure if XP home has the problem with
reinstalling a driver to replace a failed or corrupted driver but
previous versions of Windows have.
Wulfbones
Freddie Agricola - 25 Jan 2004 01:40 GMT
>> XP home doesn't do well with networking I've heard.  So check to see
>> that you still have a network running.  If you can, go to a command
[quoted text clipped - 5 lines]
>mask and the gateway as I configured them. There is no 127.0.0.1
>loopback anywhere. Does ipconfig have a more verbose mode?

Try ipconfig /all.  Also, trying ipconfig /renew or /release may
help(DHCP only)
David Navarro - 25 Jan 2004 11:26 GMT
Quoth Freddie Agricola :

>>> XP home doesn't do well with networking I've heard.  So check to see
>>> that you still have a network running.  If you can, go to a command
[quoted text clipped - 8 lines]
> Try ipconfig /all.  Also, trying ipconfig /renew or /release may
> help(DHCP only)

Did. I get the verbose info, but the /renew and /release options tell me
that no adapters are in a mode that permits them. I suppose I should
stop the network first and try again, but I'm getting the feeling that's
what the "repair network" option on the graphical interface does, and it
hasn't made a difference.

Thanks,

Signature

Venerable Hanrahan, Storm Warden (Human), Fennin Ro
           
A Shoggoth is for life, not just for Christmas.

42 - 25 Jan 2004 22:10 GMT
> Quoth Freddie Agricola :
>
[quoted text clipped - 16 lines]
> what the "repair network" option on the graphical interface does, and it
> hasn't made a difference.

release / renew are only relevant if you have tcpip to self configure
via dhcp. You don't.

But, trust me, if you aren't getting a link light on your router you are
wasting your time with that. Its not a tcpip problem. You should get a
link light without even having tcp ip installed.
David Navarro - 25 Jan 2004 23:45 GMT
Quoth 42 :

> But, trust me, if you aren't getting a link light on your router you
> are  wasting your time with that. Its not a tcpip problem. You should
> get a  link light without even having tcp ip installed.

I think you are right. Knoppix (a live CD Linux distro) has the same
problem as XP... it sees the card, but not the connection. I'll just get
swapping cables and/or cards, if needed.

Thanks to all for the input.

Signature

Venerable Hanrahan, Storm Warden (Human), Fennin Ro
           
The post above may contain deliberate errors.

beagle@dogs-like-spam.com - 26 Jan 2004 14:58 GMT
> I think you are right. Knoppix (a live CD Linux distro) has the same
> problem as XP... it sees the card, but not the connection. I'll just get
> swapping cables and/or cards, if needed.

Knoppix is GREAT for things like this.  I burned a copy of Knoppix
recently and was "jaw droppingly impressed".  And I've generally thought
of Linux as "not ready for the desktop".  Knoppix (finally) changed my
mind.

For those who don't know, Knoppix is Linux on a bootable CD.  It comes
up in full GUI beauty and has TONS of apps installed.  Including a few
web browsers, office suites, development tools (C, C++, Java, more),
games, the list just goes on and on.

It's amazing what they fit on a single CD.
Darkensolo - 24 Jan 2004 20:14 GMT
> >Okey, I have a strange and hard to diagnose problem that's keeping me
> >away from EQ, and I hope that maybe the colossal minds in this NG can
[quoted text clipped - 38 lines]
> >Any ideas? Thanks in advance for all input.
> XP home doesn't do well with networking I've heard.  

XP home does just fine with this sort of networking.  Just don't try
and stuff it into a domain..

> So check to see
> that you still have a network running.  If you can, go to a command
> window (don't know if XP has one!)

Of course it does.  If you don't find it under Start -> Programs ->
Accessories, then just go to Start -> run and type "cmd"

> and do an ipconfig command.  It
> should show the status of your network.  If you onlly see an address
> of 127.0.0.1  then you only have a loop back in place.  
> A second thing is to check your security settings.  I've seen virus
> software kill networking but it usually comes back with a reboot.

Sounds to me like the OP's eth card never woke up from that original
Sleep.  I'd suggest shutting down the XP machine (not reboot, but
shutdown), then fire it back up and see if that doesn't get it going
again.

--
Darkensolo - 64th Epic Dwarven Cleric
Lizsolo Spiritmaster - 65 Epic Barbie BeastLord
Rodcet Nife
David Navarro - 24 Jan 2004 20:20 GMT
Quoth Darkensolo :

> Sounds to me like the OP's eth card never woke up from that original
> Sleep.  I'd suggest shutting down the XP machine (not reboot, but
> shutdown), then fire it back up and see if that doesn't get it going
> again.

Oh, done that a bunch of times. As far as XP is concerned, the Ethernet
card is perfectly happy... It keeps telling me "the device is working
properly", ipconfig works, the icon looks happy... It seems only the
user is pissed off.

Signature

Venerable Hanrahan, Storm Warden (Human), Fennin Ro
           
The post above may contain deliberate errors.

Darkensolo - 24 Jan 2004 20:43 GMT
> Quoth Darkensolo :
>
[quoted text clipped - 7 lines]
> properly", ipconfig works, the icon looks happy... It seems only the
> user is pissed off.

ipconfig /all gives you what sort of output?

(can you cut & paste it here?)

--
Darkensolo - 64th Epic Dwarven Cleric
Lizsolo Spiritmaster - 65 Epic Barbie BeastLord
Rodcet Nife
@ndrew - 24 Jan 2004 20:50 GMT
<snipped>

> Any ideas? Thanks in advance for all input.

This has actually happened to me before and turned out to be a bad
network cable.  Don't know how it went bad but replaced the cable and
now works fine .. good luck in your search.
regards
@ndrew
David Navarro - 24 Jan 2004 22:54 GMT
Quoth @ndrew:

> <snipped>
>
[quoted text clipped - 5 lines]
> regards
> @ndrew

Worth a try, I guess... I'll see if I can source a new cable. I'm *not*
touching the Mac's connection. :)

Cheers.

Signature

Venerable Hanrahan, Storm Warden (Human), Fennin Ro
           
"Look at me! I'm the Mont Blanc of dandruff!"

Wulfbones - 25 Jan 2004 04:57 GMT
>Quoth @ndrew:
>>
[quoted text clipped - 10 lines]
>Worth a try, I guess... I'll see if I can source a new cable. I'm *not*
>touching the Mac's connection. :)

Ping localhost. If that won't ping then the driver is not bound to
your network card or you have a bad network card. That can happen with
Windows that a driver can get corrupted. If that is the case you need
to reinstall the driver. To do a complete reinstall of the driver,
turn off your computer, remove the network card, turn your computer
back on, remove the driver, turn the computer back off, reinstall the
network card, turn computer back on and reinstall the driver. If that
doesn't work then you have a bad network card.

Hope that helps.

Wulfbones
Wulfbones
Justin H. - 25 Jan 2004 07:19 GMT
>>Quoth @ndrew:
>>
[quoted text clipped - 19 lines]
> network card, turn computer back on and reinstall the driver. If that
> doesn't work then you have a bad network card.

Pinging localhost has nothing to do with the NIC.  If you can't ping
localhost, your problem is more likely with TCP/IP itself.

--Inyidd
Wulfbones - 26 Jan 2004 23:09 GMT
<snip>.

>Pinging localhost has nothing to do with the NIC.  If you can't ping
>localhost, your problem is more likely with TCP/IP itself.
>
>--Inyidd
It will also show if your TCP/IP stack is bound to your NIC. I've had
it happen a few times where that was not the case. Yes, that is a
problem with your TCP/IP stack, most likely it is corrupt and that is
why it doesn't bind to your hardware.
Wulfbones
nino@nino.niue - 25 Jan 2004 03:06 GMT
> from the router. The port number on the router is not lit up anymore,
> which means it's not getting any packets at all from the PC, but the
> icon on the PC's system tray is that of a working connection, not the
> red "disconnected" one.

If you don't get a link light on the router or the NIC, it's probably
a hardware problem. First exchange the network cable, then the NIC.

Signature

nino
Jeril, 65 Bard, Venril Sathir

Thomas Houseman - 25 Jan 2004 04:19 GMT
Top posted but....

I'll second this below suggestion.
---------------------

If you don't get a link light on the router or the NIC, it's probably
a hardware problem. First exchange the network cable, then the NIC.

Signature

nino
Jeril, 65 Bard, Venril Sathir

@ndrew - 30 Jan 2004 10:59 GMT
> Top posted but....
>
[quoted text clipped - 3 lines]
> If you don't get a link light on the router or the NIC, it's probably
> a hardware problem. First exchange the network cable, then the NIC.

David,

Where did you get to on this?

regards

@ndrew
 
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