Hi,

I have the below config:

BT2700HGV Router

1 Hardwired Machine.
2 Wireless Machines.

I am trying to share a folder on the hardwired machine with the 2 wireless machines however the 2 wireless machines cannot see the wired machine and vice versa (even using network magic). The 2 wireless machines can see each other and I have checked that all three are on the same subnet which they are as I read the routher has to wireless outputs (1) Business Hub 2) Fusion). I have even tried hard wiring one of the wireless machines. When I do this this machine can still see the other wireless machine, however the original hard wired machine still cannot be seen by either. I am coming to the conclusion that it is something wrong with the config on the hardwired machine and may need to refresh windows. Does anyone have any other thoughts?

Thanks, Martin

This sounds like a firewall issue.

• What do you mean by "cannot see?" Are you pinging each machine? Can you?
• What OS is installed on each? What's the output for ipconfig /all for each?
• Have you checked the firewalls? You can try disabling the firewalls on each system (i'm assuming windows firewall, or whatever else you may have installed like zone alarm) to see if it work then
• Is any of the OS's a 64 bit version? If so, do you have 64 bit version drivers?

Please be specific.

Hi,

all are running Window XP Pro. I have already dropped all the firewalls as thought it was that (bullguard was installed - not a great fan of it!) Will double check the ipconfig/all and input the results. Also I will check once again that none of the operating sytems are 64BIT.

Thanks, Martin

Hi,

I am making progress. All computers are running Windows XP Home Edition. I can ping each computer on the network. However I did notice the computer which cannot share a folder or printer has a different subnet mask. 255.255.255.252 when the two computers that can share info are on subnet mask 255.255.255.0. Please can you advise how to resolve as it seems to be allocated by the BT router. Some test results below for more info

1) IPCONFIG/ALL result for PC which cannot be seen on MSHOME Workgrp

Windows IP Configuration

Host Name . . . . . . . . . . . . : DOMAIN
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : gateway.2wire.net

Ethernet adapter Local Area Connection 3:

Connection-specific DNS Suffix . : gateway.2wire.net
Description . . . . . . . . . . . : Intel® PRO/100 VE Network Connecti
on
Physical Address. . . . . . . . . : 00-16-76-60-CE-4E
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 217.43.238.230
Subnet Mask . . . . . . . . . . . : 255.255.255.252
Default Gateway . . . . . . . . . : 217.43.238.229
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254
Lease Obtained. . . . . . . . . . : 03 November 2008 11:38:22
Lease Expires . . . . . . . . . . : 03 November 2008 11:48:22


2) IPCONFIG/ALL results from one of the PC's that can share
Windows IP Configuration

Host Name . . . . . . . . . . . . : sales
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : gateway.2wire.net

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Intel® PRO/100 VE Network Connecti
on
Physical Address. . . . . . . . . : 00-16-76-60-CC-9D

Ethernet adapter Wireless Network Connection 2:

Connection-specific DNS Suffix . : gateway.2wire.net
Description . . . . . . . . . . . : 3Com OfficeConnect Wireless 54Mbps 1
1g Compact USB Adapter #2
Physical Address. . . . . . . . . : 00-16-E0-FF-50-DA
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.64
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254
Lease Obtained. . . . . . . . . . : Monday, November 03, 2008 9:56:57 AM

Lease Expires . . . . . . . . . . : Tuesday, November 04, 2008 9:56:57 A
M


Also when I run the Network Diagnostics on the PC I notice it fails on Network Adapter DefaultIPGateway test (see screenshot attached)

Thanks, Martin

What screenshot?

Ok, the problem is your wired computer(s) are on a different network than your wired. This is most likely that you're connecting to another router/modem with your wireless.. maybe your neighbor or local business? This may also be just something funky with the router setup. Take a look at this:

Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 217.43.238.230
Subnet Mask . . . . . . . . . . . : 255.255.255.252
Default Gateway . . . . . . . . . : 217.43.238.229
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254

Your IP is totally different from the other PC below. You're in a 217.43.238.230/30 network, which means only a few IP's (IPCALC) The other PC below has 192.168.1.64/24 network (IPCALC) so it can see IP's in the range of HostMin: 192.168.1.1 to HostMax: 192.168.1.254

Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.1.64
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254

In human speak, they're in 2 different neighborhoods. They need to be on the same network so a network of 192.168.1.1/24 (IPCALC)) which is what your wired network is. How?

Make sure that the wireless connections are to YOUR router. If that is the case, you may have a multi-interface router that allows you to assign different networks (which i doubt). But it should know how to route those... Let us know what you find and we'll go from there.

My bet is that you're connected to a completely different wireless network and not your own. Also is your wireless signal password protected?? This is important especially if its a business!

Hi,

the wireless machines are using WPA encryption and are defiantly connecting to the correct router. Will take a look at the hub manager as there are all sorts of settings within it that I suspect may be causing the issue. I will let you know how I get on. Thanks for your help

Martin

BT2700HGV Router

Ok, this is a feature of your router to provide customers with a separate network (like a cafe) so they don't mess with your PC's.

See above link for:



It should be possible to setup a route between the 2 networks, but i'm not sure how really. It would take some lookin' up. The issue is you don't want to simply give access from one network to another without thinking of security implications, such as file sharing.

The bottom of the page has the manual link, so check it out if need be.