| Author |
Message |
Carl Fink
Guest
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 Posted:
Mon Dec 20, 2004 3:48 am Post subject:
Two 802.11 computers on the same network can't communicate |
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Hi.
I have a very simple home LAN. My laptop uses an SMC 2635W PC Card,
my desktop a Motorola WE800G wireless bridge, to communicate with a
Belkin F5D7230-4 wireless router. It works flawlessly in terms of
each computer being able to reach the external Internet -- but the
two computers can't see EACH OTHER. If I ping from one to the other,
less than one packet in 50 gets through. This makes things like
printing and file sharing non-starters.
If I plug either into the router using a patch cable, everything's
fine.
I've flashed the router to the newest ROM.
The problem persists if I boot the laptop as either Windows XP
Service Pack 2, or Debian GNU/Linux (Sarge). Doesn't appear to be a
driver thing. The desktop is always Sarge.
The PC Card is 802.11b, the bridge and router are "g", but surely
that's backward-compatible?
Any suggestions would be greatly appreciated.
--
Carl Fink carl@fink.to
Jabootu's Minister of Proofreading
http://www.jabootu.com |
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Bruce Lane
Guest
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| Posted:
Mon Dec 20, 2004 10:44 am Post subject:
Re: Two 802.11 computers on the same network can't communica |
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|
In article <slrncscit1.b95.carlf@panix2.panix.com>, carlf@panix.com
says...
<snippety>
| Quote: | The problem persists if I boot the laptop as either Windows XP
Service Pack 2, or Debian GNU/Linux (Sarge). Doesn't appear to be a
driver thing. The desktop is always Sarge.
The PC Card is 802.11b, the bridge and router are "g", but surely
that's backward-compatible?
Any suggestions would be greatly appreciated.
|
It sounds to me like the issue lies with the mode in which your
wireless network is operating. If you're running it in 'Infrastructure'
mode, computers will not be able to see or talk to each other. However,
they will be able to link up to the access point, and share HARDWIRED
resources connected to the same Ethernet segment that the access point
is connected to.
'Ad hoc' mode allows wireless-equipped computers to establish
connections with each other. I've not tried this (I always run
Infrastructure), but I don't see why file and printer sharing would not
work.
Keep in mind the security issues inherent to wireless. Favor WPA
encryption over WEP if at all possible. If WPA is not available, use the
longest and most complex WEP key your equipment will allow, AND upgrade
to WPA-capable hardware as soon as you can.
Also, use MAC-address filtering. Set it up so that only system
with their MAC address in your wireless device's ACL will be allowed to
connect.
Good luck.
--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute.
(Known to some as Bruce Lane, ARS KC7GR,
kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com
"If Salvador Dali had owned a computer, would it have been equipped
with surreal ports?"
-----------== Posted via Newsfeed.Com - Uncensored Usenet News ==----------
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Al Dykes
Guest
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| Posted:
Mon Dec 20, 2004 7:02 pm Post subject:
Re: Two 802.11 computers on the same network can't communica |
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|
In article <slrncscit1.b95.carlf@panix2.panix.com>,
Carl Fink <carlf@dm.net> wrote:
| Quote: | Hi.
I have a very simple home LAN. My laptop uses an SMC 2635W PC Card,
my desktop a Motorola WE800G wireless bridge, to communicate with a
Belkin F5D7230-4 wireless router. It works flawlessly in terms of
each computer being able to reach the external Internet -- but the
two computers can't see EACH OTHER. If I ping from one to the other,
less than one packet in 50 gets through. This makes things like
printing and file sharing non-starters.
If I plug either into the router using a patch cable, everything's
fine.
I've flashed the router to the newest ROM.
The problem persists if I boot the laptop as either Windows XP
Service Pack 2, or Debian GNU/Linux (Sarge). Doesn't appear to be a
driver thing. The desktop is always Sarge.
The PC Card is 802.11b, the bridge and router are "g", but surely
that's backward-compatible?
Any suggestions would be greatly appreciated.
--
Carl Fink carl@fink.to
Jabootu's Minister of Proofreading
http://www.jabootu.com
|
The bridge or the laptop's WIFi card may be faulty. sh*t happens.
Does the laptop WiFi work in other locations ? If it does you have a
case to call Belkin and see if they can suggest anything. LOL.
Just for grins, you might download netstumbler to your laptop and see
what it thinks of the signal your AP is putting out. (netstumbler is
a little particular about models of WiFi cards. good luck.)
Try resetting your bridge to factory values.
http://www.netstumbler.com/)
--
a d y k e s @ p a n i x . c o m
Don't blame me. I voted for Gore. |
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Carl Fink
Guest
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| Posted:
Mon Dec 20, 2004 9:14 pm Post subject:
Re: Two 802.11 computers on the same network can't communica |
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On 2004-12-20, Al Dykes <adykes@panix.com> wrote:
| Quote: | Does the laptop WiFi work in other locations ? If it does you have a
case to call Belkin and see if they can suggest anything. LOL.
|
Perfectly.
Belkin, when called, said "flash the router's PROM." This didn't
help.
--
Carl Fink carl@fink.to
Jabootu's Minister of Proofreading
http://www.jabootu.com |
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Carl Fink
Guest
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| Posted:
Mon Dec 20, 2004 9:15 pm Post subject:
Re: Two 802.11 computers on the same network can't communica |
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On 2004-12-20, Bruce Lane <SpammersAreVermin@dev.null> wrote:
| Quote: | It sounds to me like the issue lies with the mode in which your
wireless network is operating. If you're running it in 'Infrastructure'
mode, computers will not be able to see or talk to each other.
|
This can't be correct. The access point MUST allow them to
communicate, or the whole idea of a wireless LAN is defeated.
--
Carl Fink carl@fink.to
Jabootu's Minister of Proofreading
http://www.jabootu.com |
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noone
Guest
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| Posted:
Fri Dec 24, 2004 8:02 am Post subject:
Re: Two 802.11 computers on the same network can't communica |
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Make sure your firewall is not blocking the IP address of your
computers in the network. it will block the file sharing. Assuming
you are using zonealarm, you can add your computers in a trusted zone.
That should do the trick.
Also look at http://www.homenethelp.com/web/howto/net-update.asp
Hope this helps.
Carl Fink wrote:
| Quote: | On 2004-12-20, Bruce Lane <SpammersAreVermin@dev.null> wrote:
It sounds to me like the issue lies with the mode in which your
wireless network is operating. If you're running it in
'Infrastructure'
mode, computers will not be able to see or talk to each other.
This can't be correct. The access point MUST allow them to
communicate, or the whole idea of a wireless LAN is defeated.
--
Carl Fink carl@fink.to
Jabootu's Minister of Proofreading
http://www.jabootu.com |
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Carl Fink
Guest
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| Posted:
Fri Dec 24, 2004 4:05 pm Post subject:
Re: Two 802.11 computers on the same network can't communica |
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On 2004-12-24, noone <akjaineusanuj@gmail.com> wrote:
| Quote: | Make sure your firewall is not blocking the IP address of your
computers in the network. it will block the file sharing. Assuming
you are using zonealarm, you can add your computers in a trusted zone.
That should do the trick.
Also look at http://www.homenethelp.com/web/howto/net-update.asp
Hope this helps.
|
Apparently you missed the "both computers running Linux" part of my
posting.
--
Carl Fink carl@fink.to
Jabootu's Minister of Proofreading
http://www.jabootu.com |
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