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'[OT]: Home network monitoring software'
2007\04\26@142403 by Andre Abelian

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Hi to all

I have 4 pc and 1 DVR that connected to network thru a HUB and this is
my 3 th day I am working on it after work until midnight I can't make one of my pc to
go online I am getting "limited or no connectivity" error. I tried release ip, renew ip
ipconfig/release  or ipconfig/renew doesn't help. I also restarted the whole system etc.

1th pc   windows xp
2th pc   windows xp
3th pc   windows server 2003
4th pc   mac
5th unit is DVR that I disconnected right now

Strange thing is that I connected my laptop to where 3th pc is it worked
5 minutes then same error showed up "limited or no connectivity" no matter
how many time I restart the result is same thing until I reinstall the NIC driver.
Mac is like made of rock is always up I never seen down and 1th pc had so many
spy that I disconnected to be reformatted. I tried all kinds of spyware software
they simple do not work.

My question is:

1. is there any network monitoring software?
2. it is possible that there i a spy that is disabling the network driver?

any idea will appreciate.


Andre



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2007\04\26@160552 by Richard Prosser

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Andre,
Maybe a few more details about what you have tried?

e.g - Static IP addresses, a different hub/router, how many of the
PC's will operate at once.
Could it just be a faulty network card or cable?

Does the network otherwise appear OK without the internet connection -
can you ping the individual items?

Has the system worked previously and just failed or have you added
something or changed something and it's fallen over?

Is there something special in your ISP requirements?

I'm no network expert, but those on the list that are will likely
require a bit more info.

I have found the utility "ipscan" useful for seeing what's connected
to a network - let me know if you want a copy.

Richard P





On 27/04/07, Andre Abelian <spam_OUTaabelianTakeThisOuTspammason-electric.com> wrote:
{Quote hidden}

> -

2007\04\26@164405 by Rolf

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In addition, I have known hub ports to "blow". Try plugging in to a
different port on the hub use port 1 since that one is to be
reformatted. (you mentioned trying the mac in port 3, but not pc3 in a
different port.

Rolf

Richard Prosser wrote:
{Quote hidden}

2007\04\26@170419 by Andre Abelian

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-----Original Message-----
From: piclist-bouncesspamKILLspammit.edu [.....piclist-bouncesKILLspamspam.....mit.edu]On Behalf
Of Richard Prosser
Sent: Thursday, April 26, 2007 1:06 PM
To: Microcontroller discussion list - Public.
Subject: Re: [OT]: Home network monitoring software


Andre,
Maybe a few more details about what you have tried?
>sure

e.g - Static IP addresses,
> I didn't try

a different hub/router,
> no I didn't try different hub or router


how many of the
PC's will operate at once.
>1 or 2

Could it just be a faulty network card or cable?
> I know it is not the network card because it did the
 same thing on my laptop.


Does the network otherwise appear OK without the internet connection -
>no. once it is down then "it is down until I reinstall the driver"


can you ping the individual items?
> yes

Has the system worked previously and just failed
> yes it was working fine more then 2 years


or have you added
something or changed something and it's fallen over?
> The only thing I added is external hard drive that
 it is off right now


Is there something special in your ISP requirements?
> no


I'm no network expert, but those on the list that are will likely
require a bit more info.
> sure


I have found the utility "ipscan" useful for seeing what's connected
to a network - let me know if you want a copy.
> Yes I like to try utility it might help


thanks for your replay

Richard P





On 27/04/07, Andre Abelian <EraseMEaabelianspam_OUTspamTakeThisOuTmason-electric.com> wrote:
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> -

2007\04\26@171852 by Doug Metzler

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Is your hub just a hub or is it a firewall/DNS server?  If it's just a hub
then are you using static IP addresses?  If not is your 2003 box the DNS
server?  Has that fallen down?

DougM

{Original Message removed}

2007\04\26@180016 by Richard Prosser

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Andre.
I have sent the utility direct. You just have to rename it and run.

If there is a faulty network card, then it is possible that it could
be corrupting all activity on your network.  Maybe unlikely but......

"it is down until I reinstall the driver" - What driver??

Richard P

On 27/04/07, Andre Abelian <aabelianspamspam_OUTmason-electric.com> wrote:
>
>
> {Original Message removed}

2007\04\26@181216 by Andre Abelian

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DougM,

I use sonicwall TZ170 firewall and 3com hub.
I use windows 2003 as regular pc. and I am not
using static IP.

Andre




{Original Message removed}

2007\04\26@184515 by Marcel Birthelmer

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Andre,
Which computer is acting as a DHCP server?
Also, you can get ethereal (http://www.ethereal.com) to see packets flying
around your network.
Rgds,
- Marcel

On 4/26/07, Andre Abelian <@spam@aabelianKILLspamspammason-electric.com> wrote:
{Quote hidden}

> {Original Message removed}

2007\04\26@190551 by Alan Schnittman

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At 06:45 PM 4/26/2007, you wrote:
>Andre,
>Which computer is acting as a DHCP server?
>Also, you can get ethereal (http://www.ethereal.com) to see packets flying
>around your network.
>Rgds,
>- Marcel
>


Ethereal has been "Wireshark" for a while now.
<http://www.wireshark.org/>.  It's a great tool.

-- Alan

2007\04\26@203232 by Doug Metzler

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Can you try setting static IP on some of the machines and see how things go?

DougM

-----Original Message-----
From: KILLspampiclist-bouncesKILLspamspammit.edu [RemoveMEpiclist-bouncesTakeThisOuTspammit.edu] On Behalf Of
Marcel Birthelmer
Sent: Thursday, April 26, 2007 3:45 PM
To: Microcontroller discussion list - Public.
Subject: Re: [OT]: Home network monitoring software

Andre,
Which computer is acting as a DHCP server?
Also, you can get ethereal (http://www.ethereal.com) to see packets flying
around your network.
Rgds,
- Marcel

On 4/26/07, Andre Abelian <spamBeGoneaabelianspamBeGonespammason-electric.com> wrote:
{Quote hidden}

Of
{Quote hidden}

one
> of my pc to
> > go online I am getting "limited or no connectivity" error. I tried
release
{Quote hidden}

matter
> > how many time I restart the result is same thing until I reinstall the
NIC
> driver.
> > Mac is like made of rock is always up I never seen down and 1th pc had
so
> many
> > spy that I disconnected to be reformatted. I tried all kinds of spyware
> software
> > they simple do not work.
> >
> > My question is:
> >
> > 1. is there any network monitoring software?
> > 2. it is possible that there i a spy that is disabling the network
driver?
> >
> > any idea will appreciate.
> >
> >
> > Andre
> >
> >
> > --

2007\04\27@064704 by Tamas Rudnai

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It's nothing about IP addresses, it says the network connectivity is is
limited or disabled right? Also you said you can ping other hosts in your
home? It's about your router then, whoever is providing that routing. You
need to get the log to track down what is the problem - if you do a 'route
print' in your cmd window in your XP box you should see no default route
most probably. You also has to see this from 'ipconfig /all'.

Anyway, it could happened that your XP has a SpyWare or a Trojan and when
you access to the net the FireWall detects the attack and disconnects your
PC from the net. When you change place DHCP gives you a new IP and until
FireWall could not detect the attack you are fine.

This is just a bluff but that's what I think from these info.

Regards,
Tamas




On 4/27/07, Doug Metzler <RemoveMEdougm62spam_OUTspamKILLspamcomcast.net> wrote:
>
> Can you try setting static IP on some of the machines and see how things
> go?
>
> DougM
>
> {Original Message removed}

2007\04\27@122730 by Andre Abelian

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Can you try setting static IP on some of the machines and see how things go?

>> I will try it when I get home


DougM

{Original Message removed}

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