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Router problem

Author
6 Mar 2005 2:31 AM
Tony Yarwood
Hi guys

Sorry to bother you all with this, but this one has got me stumped!

The other day I set up broadband and a Netgear MB814v2  and straight
out of the box it worked first time.

The next day I had to shift computers back to different rooms and I
changed monitors on the m/c that's connected to the cable modem.
That's where the problem started, there was a conflict with the driver
and Windoze wouldn't shut down properly.  After a bit of fiddling
around including reformatting and installing a fresh copy of 98se I
realised it was the monitor and changed them around again.

However this is now the scenario;
There are three computers A, B and C all running 98se, A is connected
to the router and the cable modem.  

When I fire everything up B and C can see each other over the wireless
LAN but not A and A can see nothing. Funny enough when I open a
browser on B or C I do get the Netgear home page wizard  but that's
all.

A can't ping the router nor any of my isp's servers, B and C can ping
the router but not the other servers.

I'm pretty sure it's not hardware, I've reset the routers to default,
changed NIC cards and cables, reloaded protocols and TCP IP.

I'm missing something fairly simple here, any ideas gratefully
accepted.

Best regards

Tony

Author
6 Mar 2005 1:00 PM
Mark McIntyre
On Sun, 06 Mar 2005 02:31:37 +0000, in alt.internet.wireless , Tony Yarwood
<Tony.Yarw***@XXXfreeuk.com> wrote:

>When I fire everything up B and C can see each other over the wireless
>LAN but not A and A can see nothing. Funny enough when I open a
>browser on B or C I do get the Netgear home page wizard  but that's
>all.
>
>A can't ping the router nor any of my isp's servers, B and C can ping
>the router but not the other servers.

Check the TCPIP settings on all machines are set to get an address
automatically. Then do ipconfig on each machine, to ensure they correctly
got an address. Anything with a 169.etc address is bad.

If you still have one mch with a bad IP, then try swapping network cables
round, and try using different ports on the router. Given that you've moved
kit around, its quite possible that a cable got kinked or a port died on
the router.

Author
6 Mar 2005 1:04 PM
Mark McIntyre
On Sun, 06 Mar 2005 13:00:47 +0000, in alt.internet.wireless , Mark
McIntyre <markmcintyre@spamcop.net> wrote:

Show quoteHide quote
>On Sun, 06 Mar 2005 02:31:37 +0000, in alt.internet.wireless , Tony Yarwood
><Tony.Yarw***@XXXfreeuk.com> wrote:
>
>>When I fire everything up B and C can see each other over the wireless
>>LAN but not A and A can see nothing. Funny enough when I open a
>>browser on B or C I do get the Netgear home page wizard  but that's
>>all.
>>
>>A can't ping the router nor any of my isp's servers, B and C can ping
>>the router but not the other servers.
>
>Check the TCPIP settings on all machines are set to get an address
>automatically. Then do ipconfig on each machine, to ensure they correctly
>got an address. Anything with a 169.etc address is bad.
>
>If you still have one mch with a bad IP, then try swapping network cables
>round, and try using different ports on the router. Given that you've moved
>kit around, its quite possible that a cable got kinked or a port died on
>the router.

urg. Strike that last bit about cables, wrong response for this group... 

still, its worth a try - can you connect the mch's with cables? Is computer
A in a position with poor wireless reception?


Author
6 Mar 2005 6:37 PM
Jeff Liebermann
On Sun, 06 Mar 2005 02:31:37 +0000, Tony Yarwood
<Tony.Yarw***@XXXfreeuk.com> wrote:

>The next day I had to shift computers back to different rooms and I
>changed monitors on the m/c that's connected to the cable modem.
>That's where the problem started, there was a conflict with the driver
>and Windoze wouldn't shut down properly.  After a bit of fiddling
>around including reformatting and installing a fresh copy of 98se I
>realised it was the monitor and changed them around again.

Microsoft Slogan:  Windoze, what do you want to reinstall today?

>However this is now the scenario;
>There are three computers A, B and C all running 98se, A is connected
>to the router and the cable modem.  

Connected?  How?  Via wireless or wired?

When you reinastalled "A", did you do it by cloning one of the other
computahs?  If so, you probably also cloned all the settings including
the wireless MAC address in the registry.  Duplicated MAC addresses on
a LAN is not a great idea.

>When I fire everything up B and C can see each other over the wireless
>LAN but not A and A can see nothing.

Duz "A" have a valid IP address?  Run:
  Start -> Run -> command
  ipconfig
If the address of the wireless card is 169.254.xxx.xxx, you didn't get
a DHCP assigned IP address from the Netgear router.  Too many possible
reasons to list.  Try turning off encryption for now in the router and
see if it connects.

>Funny enough when I open a
>browser on B or C I do get the Netgear home page wizard  but that's
>all.

I take it that means you can communicate with the router from "B" and
"C".  Go to the "status" page in the router and see if your
unspecified WAN connection is functional.  You should see real
routeable IP addresses assigned by the ISP.  If not, you have either
an ISP, modem, or router setting problem.

>A can't ping the router nor any of my isp's servers, B and C can ping
>the router but not the other servers.

What other servers?

>I'm pretty sure it's not hardware, I've reset the routers to default,
>changed NIC cards and cables, reloaded protocols and TCP IP.

Sigh.  This would be a great time to start from scratch.

Take either "B" or "C" computah and plug it directly into the router
using a wired LAN CAT5 cable.  If they're too far away, drag them over
to the wireless, or find a long CAT5 cable.  You'll find it easier to
do this if you have everything in one room during troubleshooting.
Disable the wireless in either the router or the clients.  Turn OFF
the other computers.  One modem, one router, one computah.  Now, get
yourself a working ISP connection to the internet.  When you get that
functional, plug in "B" or "C" and get it working.  Again, no
wireless. 

After that, get "A" working.  Turn OFF "B" and "C".  One machine at a
time.  Here you may have a problem because you've either screwed up
the Windoze 98SE reinstall, or misconfigured the TCP/IP stack.  I
don't have enough info to figure it out.

Now turn on and plug in two machines at a time.  See if it works,
again wired LAN only.  If so, now you can turn on *ONE* of the
wireless radios, setup encrytion, and do some testing.  I think you
can probably see the methodology and fill in the rest yourself. 

>I'm missing something fairly simple here, any ideas gratefully
>accepted.

The idea is to NOT troubleshoot everything at one time. 

As for machine to machine communications, try ping first.  Then try:
  Start -> Run -> \\machine_name   or  \\machine_IP_address
and you should get a directory without waiting for the "master browser
election" nonsense.


--
Jeff Liebermann    je***@comix.santa-cruz.ca.us
150 Felker St #D   http://www.LearnByDestroying.com
Santa Cruz CA 95060    AE6KS  831-336-2558
Author
7 Mar 2005 12:50 PM
Carmen
On Sun, 06 Mar 2005 10:37:23 -0800, Jeff Liebermann
<je***@comix.santa-cruz.ca.us> wrote:

Hi guys

Thanks for your replies.
>
>Microsoft Slogan:  Windoze, what do you want to reinstall today?

Don't ya just love it...gawd, wish I had the time and patience to
stick with Linux. It's all the re-boots that really get up my nose.
>
>>However this is now the scenario;
>>There are three computers A, B and C all running 98se, A is connected
>>to the router and the cable modem.  
>
>Connected?  How?  Via wireless or wired?

I'm beginning to narrow this down a bit, it's something between the
router and the cable modem, or the more likely culprit the interface,
Windoze.

When I connect A, B and C through a wired hub everything's fine, they
all see each other and A cam ping the net.

On computer A there are two LAN cards eth1 is set to automatic and is
connected to the cable modem, eth2 is connected to the LAN.  On the
LAN side of things I prefer to have fixed ip's (makes it so much
easier to ping etc.) Eth2 is set to 192.168.0.2 and the gateway is
192.168.0.1 (which according to the Netgear manual is the router
default).

B and C are set at 192.168.0.3+++ with the same default gateway.

When I put the wireless router on, the only thing that works is the
wireless connection between B and C. Computer A can neither ping B,C
or the net.  Nor can B ping A, it can ping the router tho.  It totally
screws up the cable connection, I can't  access the web at all.

It also doesn't work when I hardwire B or C to the wireless router.

I'm beginning to think I've screwed up the router; I find out now that
they're quite sensitive souls, I left this one on top of the CRT
monitor for a while the other day, duh.
>
>When you reinastalled "A", did you do it by cloning one of the other
>computahs?  If so, you probably also cloned all the settings including
>the wireless MAC address in the registry.  Duplicated MAC addresses on
>a LAN is not a great idea.
>
No,  I don't think so,  I reformatted c:\ and clean installed 98se .

>>When I fire everything up B and C can see each other over the wireless
>>LAN but not A and A can see nothing.
>
>Duz "A" have a valid IP address?  Run:
>  Start -> Run -> command
>  ipconfig
>If the address of the wireless card is 169.254.xxx.xxx, you didn't get
>a DHCP assigned IP address from the Netgear router.  Too many possible
>reasons to list.  Try turning off encryption for now in the router and
>see if it connects.
>
The wireless card, eth1 is showing my isp assigned ip.

<big snip>

>The idea is to NOT to troubleshoot everything at one time. 
>
Thanks Jeff, I do try to be methodical and try just one fix at a time.
Many thanks for your trouble in replying.

Best regards

Tony
Author
7 Mar 2005 1:00 PM
Tony.Yarwood
On Mon, 07 Mar 2005 12:50:50 GMT, Carmen <Carmen.Br***@clara.co.uk>
wrote:

Oops, sorry hadn't realized my wife's addy was still there.

Best regards

Tony