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Can't connect to another computer on my wireless network

Posted on 2004-08-24
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Last Modified: 2007-12-19
On my home network I have a tower computer (Dell) running Windows XP Pro SP2 and a laptop (Compaq) running Windows XP Home SP2.

The Dell is connected from it's ethernet card to a Netgear MR814v2 wireless router which is in turn connected to a Satellite modem.

Both computers have D-Link 120d wireless network adapters. The workgroup name is PLANB.

The Dell is on the Internet, can ping itself (192.168.0.10), can ping the router (192.168.0.1) but can not ping the Compaq (192.168.0.11). Both subnet masks are (255.255.255.0). On View workgroup computers it gets "Planb is not accessible, you might not have permission etc. ....." There is no software firewall installed other than Windows which is turned off.

The Compaq is on the Internet and receiving email. It can ping the router, can ping the Dell, can ping Yahoo.com but can't ping itself. It shows as being connected to Planb. The Windows firewall is turned off. I tried re-installing the D-Link drivers with no success. I tried uninstalling TCP/IP in order to re-install but the Uninstall was grayed out. It gets the same answer as above on trying to view workgroup computers.

Sorry for the length here but I am trying to give as much info as possible.


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Question by:fbaillie
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Expert Comment

by:BrianKronberg
ID: 11888568
Are you using DHCP or static addresses on both clients?  Check these:

1.  Both clients have the same subnet mask the same as internal firewall interface
2.  Ensure both clients have the same gateway setting
3.  Add each computer to the other client's HOSTS file.  (c:\windows\system32\drivers\etc) http://practice.chatserve.com/hosts.html for more info
4.  Ensure the Windows firewall is turned off on both PCs (you can turn it on later)
5.  Ensure you are not running any other firewall on the Compaq (the Cisco VPN client has a firewall built in, is it installed?)

Try your ping again
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Expert Comment

by:timnorvel
ID: 11888633
I can't remember exactly where it is, but on win xp home you have to check (or uncheck) some box asking if you want to allow others to connect to your system.  I think if you right-click my computer and choose properties, then go to the tab furthest to the right, it's somewhere in there.  Sorry I can't be more specific.

Good luck,
tim
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Author Comment

by:fbaillie
ID: 11889006
Brian:

I'm don't know about DHCP but both computers have fixed IP addresses.

Both clients and the router have the same subnet mask

both clients have the same gateway setting.

Both computers' IP addresses have been added to the other's HOSTS file.

Windows firewall is turned off on both.

No other firewall is installed on the Compaq.

The ping still doesn't work.

Tim:

I can't find the setting you're referring to, but on Windows network setup one would think that would be set.

Frank
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Expert Comment

by:smoke184
ID: 11889071
Definately the firewall is on....(XP PRO machine SP-2)....unlike SP-1 machines it's on by default...........network connections>properties>advanced tab........you can also specify which IP are allowed access to your computer in SP-2
try pinging the 127.0.0.1...first to make sure your Nic @ least will loop back

As an aside....you may want to diisable simpe file sharing which is on by default in folder properties.......that way you have to authenticate as a user to log to the other computer.......of course the user has to be on the local account of both machines....in order to work.
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Expert Comment

by:Dragonmen
ID: 11891036
You can turn ICMP packets off (by it's service) so the laptop cannot ping itself or someone else, but that requires firewall to be turned on.
Maybe you can turn on the firewall and uncheck this settings.

Did you use the ip address to ping or the computer names? If you use ip address no host entries is needed (it shouldn't be needed anyway).
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Author Comment

by:fbaillie
ID: 11892513
The firewall is OFF on both machines FOR SURE.

I can ping 127.0.0.1

ICMP is allowing incoming pings

I use the IP address to atempt the pining.

Still no success.
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Expert Comment

by:JohnItem
ID: 11899235
This may sound foolish, but are you sure the Compaq's IP is 0.11?

It makes no sense that everything can ping everything else except 0.11?

Did you setup 0.11 statically?

My reasoning:

No one can ping 0.11, including self (Compaq) and yet the machine (Compaq) has Internet/mail access?
Sounds like it is obtaining an IP (I suppose from the router) and it is not 0.11 at all...

Have you tried ipconfig /all from the command prompt?
What does it show?

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Author Comment

by:fbaillie
ID: 11901809
The IP is set statically to 0.11 which is confirmed both with ipconfig and the properties of the D-Link.

Fos some reason the Dell can now see the network "Planb" but only shows the Dell not the Compaq.
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Expert Comment

by:JohnItem
ID: 11914754


Would you be able to post the results of:

ipconfig /all

fromt the Compaq machine?
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Author Comment

by:fbaillie
ID: 11922891
Sorry for the slow response  -I was away for 2 days.

Here are the results -
Windows IP Configuration
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Author Comment

by:fbaillie
ID: 11922905
OOPs I don't  know how that  went out  - results

Windows IP Configuration
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Author Comment

by:fbaillie
ID: 11922957
Ah - I see the TAB is doing it - results

Windows IP Configuration
         Host Name ...................: compaq
         Primary Dns Suffix .........:
         Node Type ....................: Unknown
        IP Routing Enabled ..........: No
        WINS Proxy Enabled ........: No

Ethernet adapter Wireless Network Connection 3:
        Connection-specific INS Suffix ..:
        Description .............................: D-LINK DWL-120 WIRELESS USB ADAPTER
        Physical Address .....................: 00-05-5D-5C-15-91
        Dhcp Enabled ..........................: No
        IP Address ..............................: 192.168.0.11
        Subnet Mask ...........................: 255.255.255.0
        Default Gateway ......................: 192.168.0.1
        DNS Server .............................: 192.168.0.1

And that's it.

Frank
 
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Expert Comment

by:JohnItem
ID: 11923855
All seems in place... Can we back track a bit?

Alright, you CAN ping others and you HAVE access to Internet/email, correct?

I'm sure you've tried it already, but could you perform these steps again on the Compaq?

i.  Go to Control Panel/ Network Connections
ii. Run the Network Connection Wizard
iii. It's relatively easy to follow (just don't elect to enable firewall, since you have the router already)

Then you should be able to ping 192.168.0.11 from elsewhere.
Let us know if you cannot, and whether Internet/Email is accessible.

(I encounter similar problems with clients and we can only address this step by step).

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Author Comment

by:fbaillie
ID: 11927074
I've tried this before, but did again.

Still no luck and I can still access the Internet from the Compaq.
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Author Comment

by:fbaillie
ID: 12086519
I installed NETBUI on both computers and now everything works fine.

Thanks for the efforts.
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