Can't connect 2nd computer via router

  • Thread starter Thread starter Colonel Blip
  • Start date Start date
C

Colonel Blip

Hello, All!

My M$ wireless router went out so I bought a Netgear 624 to replace it. I've
not yet fooled with my wireless laptop so following has to do with my two
desktops via Ethernet.

I hooked up both computers (both off), called my ISP to reset my cable
modem, started my router and then my main desktop - worked fine as evidenced
by this post.

I then started the 2nd computer and it will not be recognized by the router.
Previously it had been no problem on the SMC and was no problem on a hub
(networking the two desktops briefly) while I was waiting for the netgear.

I've tried s/d and restart on the 2nd DT several times; I did ipconfig
/release - nothing to release it says since it is setup DHCP. Tried renew
but that got nowhere either.

Both DT's are W2K, latest sp.

Anyone see what might be the problem?

Thanks.

Colonel Blip.
E-mail: (e-mail address removed)
 
in message : My M$ wireless router went out so I bought a Netgear 624 to replace it.
I've
: not yet fooled with my wireless laptop so following has to do with my two
: desktops via Ethernet.
:
: I hooked up both computers (both off), called my ISP to reset my cable
: modem, started my router and then my main desktop - worked fine as
evidenced
: by this post.
:
: I then started the 2nd computer and it will not be recognized by the
router.

What does that mean, "will not be recognized by the router"?

: Previously it had been no problem on the SMC and was no problem on a hub
: (networking the two desktops briefly) while I was waiting for the netgear.
:
: I've tried s/d and restart on the 2nd DT several times; I did ipconfig
: /release - nothing to release it says since it is setup DHCP. Tried renew
: but that got nowhere either.

s/d? I could guess but better if you specify. I got the DT as desktop
although it is unique.
How did you network them on a hub but no on a router? Does the router have
a built in switch because routers connect networks, not PCs? Does the
switch have a MDI/MDIX port? (MDI - straight through / MDIX - crossed) Do
you get a link light for the system not working? Have you tried a different
port?

Generally you get the MSFT APIPA address if you cannot connect to the
network.

: Both DT's are W2K, latest sp.


--
Roland Hall
/* This information is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of merchantability
or fitness for a particular purpose. */
Online Support for IT Professionals -
http://support.microsoft.com/servicedesks/technet/default.asp?fr=0&sd=tech
How-to: Windows 2000 DNS:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;308201
FAQ W2K/2K3 DNS:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;291382
 
Hello, Roland!
You wrote on Mon, 1 Nov 2004 03:00:02 -0600:

RH> What does that mean, "will not be recognized by the router"?

Router will not assign it an IP address which means if one tries, e.g. to
ping the router or access the router setup or network or get to the net via
a cablemodem one is out of luck.

RH> s/d? I could guess but better if you specify.

Reboot or power down power up.

RH> How did you network them on a hub but no on a router? Does the router
RH> have a built in switch because routers connect networks, not PCs? Does
RH> the switch have a MDI/MDIX port? (MDI - straight through / MDIX -
RH> crossed) Do you get a link light for the system not working? Have you
RH> tried a different port?

Disconnect the computers from the router and connect them to a hub. Tried
different ports on the router, no change.

Spent 3 hours with tech support. Eventually I gave up on it. Sending it
back. Got out an old SMC non-wireless, hooked up the same two computers and
no problems. Both working fine.

Thanks.

Colonel Blip.
E-mail: (e-mail address removed)
 
: Hello, Roland!
: You wrote on Mon, 1 Nov 2004 03:00:02 -0600:
:
: RH> What does that mean, "will not be recognized by the router"?
:
: Router will not assign it an IP address which means if one tries, e.g. to
: ping the router or access the router setup or network or get to the net
via
: a cablemodem one is out of luck.

Ok, this is pretty simple.

1. If your router supports DHCP, then DHCP has to be enabled and you have to
enable a scope and configure it. On a SOHO router, this is generally pretty
straight forward and a default scope is enabled, usually: 192.168.x.x
2. Your computers need to be setup in DHCP mode (obtain an IP address
automatically). If the router also supplies DNS information via DHCP, then
DNS also needs to be set to obtain it automatically, else you will have to
put them in manually.
3. The router needs to be up when the computers turned on. They will obtain
an IP address by sending out a DHCP request (0.0.0.0) and the router should
respond with an address from the scope (pool of addresses), including it's
IP address, lease expiration, DNS, etc.
4. Then you need to test your configuration.
IPCONFIG /ALL from a command prompt on a workstation. If you successfully
obtain an IP address from DHCP, you should be good to go, so long as the
default gateway (DFG) is correct.

Ex.
Router: 192.168.0.1
WK1: 192.168.0.2
DFG: 192.168.0.1

If you do not get an IP address at all, or it is all zeros, you have a
problem. If you get an IP address of 169.254.x.x then you have an APIPA
address, which usually means the DHCP server is not being seen and can be a
physical problem (cable, port, switch, etc.)

Not knowing exactly what you're getting on this end makes it very difficult
to troubleshoot. It limits responses to core configuration examples.

: RH> s/d? I could guess but better if you specify.
:
: Reboot or power down power up.

I never would have gotten that, perhaps s/d = shutdown.

: RH> How did you network them on a hub but no on a router? Does the router
: RH> have a built in switch because routers connect networks, not PCs?
Does
: RH> the switch have a MDI/MDIX port? (MDI - straight through / MDIX -
: RH> crossed) Do you get a link light for the system not working? Have
you
: RH> tried a different port?
:
: Disconnect the computers from the router and connect them to a hub. Tried
: different ports on the router, no change.

Well, that was not really my question. My question was does the ROUTER have
a built-in switch? When you say "Disconnect the computers from the router
and connect them to a hub." Does that mean the router is no longer involved
or is the switch now connected to the router? Do the connected ports have
link lights enabled?

What is "no change?" If you're only connected to a hub now, then the hub
should have an uplink port or MDI/MDIX switch because you're trying to
connect a x'd port with an x'd port and that requires either a switchable
port to MDI (straight through) or a x-over (cross over) cable.

: Spent 3 hours with tech support. Eventually I gave up on it. Sending it
: back. Got out an old SMC non-wireless, hooked up the same two computers
and
: no problems. Both working fine.

non-wireless what? router? hub? switch?

It is possible you have bad hardware but going back in time is usually not
recommended. Also, when you get any device that is upgradeable, you should
always check to make sure you have the latest. All of these devices have
shelf lifes.

HTH...

--
Roland Hall
/* This information is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of merchantability
or fitness for a particular purpose. */
Online Support for IT Professionals -
http://support.microsoft.com/servicedesks/technet/default.asp?fr=0&sd=tech
How-to: Windows 2000 DNS:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;308201
FAQ W2K/2K3 DNS:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;291382
 
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