Wifi network recognised but can't share Internet

[Eri cB]

Hi oeple! I have installed a wireless network and both
host and client indicate a connection, but I can't ping
either PC from the other. Can someone indicate what I am
doing wrong (I disabled the Trendmicro FW). Host is
running XP Pro and the client W2K. Cheers.

 

[Chuck]

Hi oeple! I have installed a wireless network and both
host and client indicate a connection, but I can't ping
either PC from the other. Can someone indicate what I am
doing wrong (I disabled the Trendmicro FW). Host is
running XP Pro and the client W2K. Cheers.

Eric,

How are the two PCs connected? Thru a router? Direct cable (which as to be a
cross-over)?

Please provide ipconfig information for each computer.
Start - Run - "ipconfig /all >c:\ipconfig.txt" - Open c:\ipconfig.txt in
Notepad, copy and paste into your next post.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[Guest]

Hi Chuck! It is Eric from Paris (you might recall having
saved a little of the hair left on my head by helping me
configure Wifi at home after Christmas!).

I am trying to setup a similar network (2 PCs) at our SOHO.
Here are the Ipconfig files (host, under XP Pro) first:
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\EricB>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : DJ0V621J
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R)
PRO/100 VE Network Connecti
on
Physical Address. . . . . . . . . : 00-0C-F1-B6-4E-
7D
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IP Address. . . : 169.254.41.163
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 81.185.98.39

Ethernet adapter Wireless Network Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Linksys
Wireless-G USB Network Adapt
er #2
Physical Address. . . . . . . . . : 00-0C-41-DE-49-
EF
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :

PPP adapter Connexion ADSL:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP)
Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-
00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 81.185.98.37
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 81.185.98.37
DNS Servers . . . . . . . . . . . : 213.203.124.146
212.30.96.108
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Documents and Settings\EricB>

CLient (under W2K) that I transcribed because in French
and no diskette drive:

Ethernet adapter
Description...IEEE802.11B Wireless USB
DHCP...Yes
Autoconfiguration...Yes
Autoconfigured IP Adress...169.254.109.136
Submask...255.255.0.0
Default Gateway....Nothing
DNS...Nothing

I hope you can help again. You can drop me a line on my
email address = (e-mail address removed).

Thanks for your time.
EB

 

[Chuck]

Hi Chuck! It is Eric from Paris (you might recall having
saved a little of the hair left on my head by helping me
configure Wifi at home after Christmas!).

I am trying to setup a similar network (2 PCs) at our SOHO.

<SNIP>

Hi Eric!

I'm a little unsure what you're trying to do here, and how your network is
setup. But I'll start with a few guesses.

Please describe the physical setup first. I see the wireless adapter on the
host, and another on the client. And the PPP adapter on the host. I am
guessing it's a peer-to-peer wireless setup?

If peer-to-peer, are you then running ICF on the host? But the client is
clearly not getting its settings from the host. So my guess is they're not
connecting wirelessly.

Did you configure the wireless adapter (on each computer) as adhoc
(peer-to-peer)? Are they on the same channel? With the same SSID? Can you
tell if the client is associating with the host?

Why do you have 2 network connections on the host (3 including the PPP adapter)?
Are you just intending to share internet service? Or will you be doing file
sharing too? What does the third connection do?

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[Guest]

Checkk plse see my answers:

-----Original Message-----

SOHO.

<SNIP>

Hi Eric!

I'm a little unsure what you're trying to do here, and how your network is
setup. But I'll start with a few guesses.

Please describe the physical setup first. I see the wireless adapter on the
host, and another on the client. And the PPP adapter on the host. I am
guessing it's a peer-to-peer wireless setup?

Yes it is a p2P wireless setup: ADSL comes in through the
PPP host adapter, via Ethernet (which I guess explains why
there are THREE adapters on the host).

If peer-to-peer, are you then running ICF on the host? But the client is
clearly not getting its settings from the host. So my guess is they're not
connecting wirelessly.

Yes ICF is running on the host. I show a connection on
both the host and client, ad-hoc automatic WEP-key, but no
pinging possible.

Did you configure the wireless adapter (on each computer) as adhoc
(peer-to-peer)? Are they on the same channel? With the same SSID? Can you
tell if the client is associating with the host?

No association: I can't ping either computer from the
other (Host timeout error msg).

Why do you have 2 network connections on the host (3

including the PPP adapter)?
See my explanation above.

Are you just intending to share internet service? Or will you be doing file
sharing too? What does the third connection do?

Yes we plan to share Internet/files and the printer, but
will just happy with ICS fro now!
Do these answers help?
Cheers.

 

[Chuck]

Checkk plse see my answers:

-----Original Message-----

Yes it is a p2P wireless setup: ADSL comes in through the
PPP host adapter, via Ethernet (which I guess explains why
there are THREE adapters on the host).
Yes ICF is running on the host. I show a connection on
both the host and client, ad-hoc automatic WEP-key, but no
pinging possible.

OK, Eric,

I'm confused. I've never seen a PPP connection result in internet service
coming in by Ethernet. Maybe the route table will help explain things.

Please provide the route table for the host.
Start - Run - "route print >c:\route.txt" - Open c:\route.txt in Notepad, copy
and paste into your next post.

Try and explain what the PPP adapter, and the Ethernet adapter, connect to. If
a cable, what's on the other end of the cable? Is there a modem somewhere?
Connected to what?

Can you access the internet from the host? Is ICS enabled between the PPP
adapter and the Linksys wireless adapter?

ICF should be enabled only on the PPP adapter. It will interfere with file
sharing and pinging if enabled on the adapter connecting to the client.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[EricB]

Chuck, our ADSL modem is attached by a cable to the
Ethernet port. The Linksys Wifi apadter is connected to
a USB port. I can access the Internet no sweat from the
host and I enabled ICS on the LAN adapter, not the PPP
adapter (which appears as a dial up connection in Network
Connections for some reason!).
ICF is on the LAN adapter.
The Wifi network appears in the tool bar on noth computer
with an Excellent signal strength.
I will try and send the report in a bit, as I need to log
on remotely...
EB

-----Original Message-----

 

[Chuck]

Chuck, our ADSL modem is attached by a cable to the
Ethernet port. The Linksys Wifi apadter is connected to
a USB port. I can access the Internet no sweat from the
host and I enabled ICS on the LAN adapter, not the PPP
adapter (which appears as a dial up connection in Network
Connections for some reason!).
ICF is on the LAN adapter.
The Wifi network appears in the tool bar on noth computer
with an Excellent signal strength.
I will try and send the report in a bit, as I need to log
on remotely...
EB

OK, Eric, I think I'm getting the picture. Is your internet service PPPoE?
That is, when you startup, does it "dial" and ask for an account and password?

If so, you might do well to get a wireless NAT router. NAT routers (those I'm
aware of anyway) are PPPoE compatible, and do so much better a job of running
the PPPoE client, maintaining your connection, sharing the connection, and
protecting the client computers.

And infrastructure wireless (as opposed to ad-hoc) is easier to secure, and more
reliable.

But continue with the analysis anyway. We might be able to get this working.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[Chuck]

Chuck, our ADSL modem is attached by a cable to the
Ethernet port. The Linksys Wifi apadter is connected to
a USB port. I can access the Internet no sweat from the
host and I enabled ICS on the LAN adapter, not the PPP
adapter (which appears as a dial up connection in Network
Connections for some reason!).
ICF is on the LAN adapter.
The Wifi network appears in the tool bar on noth computer
with an Excellent signal strength.
I will try and send the report in a bit, as I need to log
on remotely...
EB

Eric,

There are two possible reasons for "can't ping either PC from the other".

1) They are on a different subnet (logically). The host wireless connection
is on 192.168.0/24 because ICS was enabled on it. The client wireless
connection is on 169.254/16, because it is not getting an ip address from the
ICS DHCP server, and is self-assigning an address.

2) There is no connectivity between the host and client. The client is failing
to associate with the host in the ad-hoc wireless network. This, of course,
will cause the above condition.

If you had a wireless router and were unable to associate with it, the router
log (on some brands) might indicate an unsuccessful attempt to associate, and,
in some cases, the cause of the failure (bad WEP key, bad MAC address, ...).

Do the drivers for either wireless adapter (host or client) have a log option?
Check the Event Log on both computers (Control Panel - Administrative Tools -
Event Viewer) too.

When attempting to associate the host and client, and seeing "Excellent signal
strength", try disconnecting / disabling the adapter on the host, then on the
client, while watching the signal strength indicator on the other. Does the
"Excellent signal strength" condition still show on each adapter, when connected
and enabled, with the adaptor on the other disabled or disconnected? How far
apart are the host and client when trying to associate?

I note that the host adapter is described as "Linksys Wireless-G USB Network
Adapter", and the client adapter as "IEEE802.11B Wireless USB". Have you setup
the host adapter as "B mode only"?

Are both the host and client adapters setup on the same channel? Try a
different channel. If currently on 1, move to 11; if currently on 11, move to
1; if in middle, move to 1 then 11.

Remove all security devices for diagnosis. Disable ICF. Turn MAC filtering and
WEP / WPA off on both wireless adapters.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[EricB]

Yes, I found it strange that the DSL modem "dials", so it
must be PPPoE.
I will send the Route report tomorrow, 'cause I can't
seem to get the remote access service I am testing to
work this evnning.
Have a good one!
EB

 

[EricB]

PS By the way Chuck, I can't seem to execute "route print

 

[Chuck]

PS By the way Chuck, I can't seem to execute "route print

Eric,

Try "route print" from the command window. Then "route print >c:\route.txt",
again from the command window.

When you do "ipconfig" or "route print" from Start - Run, it opens a window ever
so briefly. Some mistake that for a problem, and get confused. So do it from
an open window.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[EricB]

Chuck, voila the route report!
Does this help?
Cheers.

===========================================================
================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 0c f1 b6 4e 7d ...... Intel(R) PRO/100 VE
Network Connection - Packet Scheduler Miniport
0x10004 ...00 0c 41 de 49 ef ...... Linksys Wireless-G USB
Network Adapter #2 - Packet Scheduler Miniport
0x20005 ...00 53 45 00 00 00 ...... WAN (PPP/SLIP)
Interface
===========================================================
================
===========================================================
================
Active Routes:
Network Destination Netmask Gateway
Interface Metric
0.0.0.0 0.0.0.0 81.185.98.19
81.185.98.19 1
0.0.0.0 0.0.0.0 81.185.98.39
169.254.41.163 21
0.0.0.0 0.0.0.0 192.168.0.1
192.168.0.1 31
81.185.98.1 255.255.255.255 81.185.98.19
81.185.98.19 1
81.185.98.19 255.255.255.255 127.0.0.1
127.0.0.1 50
81.255.255.255 255.255.255.255 81.185.98.19
81.185.98.19 50
127.0.0.0 255.0.0.0 127.0.0.1
127.0.0.1 1
169.254.0.0 255.255.0.0 169.254.41.163
169.254.41.163 20
169.254.41.163 255.255.255.255 127.0.0.1
127.0.0.1 20
169.254.255.255 255.255.255.255 169.254.41.163
169.254.41.163 20
192.168.0.0 255.255.255.0 192.168.0.1
192.168.0.1 30
192.168.0.1 255.255.255.255 127.0.0.1
127.0.0.1 30
192.168.0.255 255.255.255.255 192.168.0.1
192.168.0.1 30
224.0.0.0 240.0.0.0 169.254.41.163
169.254.41.163 20
224.0.0.0 240.0.0.0 192.168.0.1
192.168.0.1 30
224.0.0.0 240.0.0.0 81.185.98.19
81.185.98.19 1
255.255.255.255 255.255.255.255 169.254.41.163
169.254.41.163 1
255.255.255.255 255.255.255.255 192.168.0.1
192.168.0.1 1
Default Gateway: 81.185.98.19
===========================================================
================
Persistent Routes:
None

 

[Chuck]

Chuck, voila the route report!
Does this help?
Cheers.

Eric,

Verrry interesting indeed. I've not to date seen such an intricate table.

Checkout the other suggestions in my numerous posts please. There's a lot of
diagnosis to do.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.

 

[EricB]

Will do but that will be for next week when I am at the
office location with both computers in hand!
Have a Happy Easter!
EB

 

[Chuck]

Will do but that will be for next week when I am at the
office location with both computers in hand!
Have a Happy Easter!
EB

You too, bro!

 

[EricB]

Hi CHuck. I hope you had a great Easter weekend!
You were right: I had to enable ICF on the PPP adapter and
ICS on the Wifi adapter! Now everything works. Many
thanks again for all your help!
EB