Wired\Wireless Network Connection Problem

[erethryn]

Hi,

Hopefully someone here can help me with my network quandary…

I have 2 PCs connected to a router (I’ll call them X and Y), their IP addresses are assigned by the router, and are 192.168.1.x

I have a wireless card in one of these PCs (I’ll say X), this is acting as a software access point, to which is wirelessly connected another PC (Z), this has an IP address assigned by the software access point, which is 192.168.0.x

The 2 PCs connected via the router (X and Y) can see each other in the network neighbourhood, and share files.

Z can access X and Y via Remote Desktop, and also ping X and Y, but cannot see them in the network neighbourhood.

Z can also access the internet using ICS via X and the router.

X cannot see Z in the network neighbourhood, but can connect to its shared directories using Start -> Run -> \\name\share, or by mapping a drive.

Y cannot connect to Z in any way, including pinging.

All computers are running XP Pro with the latest updates, and are all part of the same workgroup.

I’ve also tried connecting with all firewalls (including the Windows Firewall) disabled.

Any suggestions where I’m going wrong?

[J1mmy]

Couldnt you connect Z to the router and access X through the network?

[erethryn]

Z is connected via the wireless connection, as it's upstairs, well away from the router.

The router is just wired, I'm using X as a software wireless access point.

[J1mmy]

You have two different IP ranges on your network.

192.168.1.X and 192.168.0.X

Maybe this has an influence on the communication between computers. Is it possible to give Z an IP with the 192.168.1.X range?

As a result, you may be able to see all 3 computers in the network neighbourhood.

[erethryn]

I did consider that the different IP ranges would cause a problem, but if I set the router DHCP to use an IP range of 192.168.0.x, the ICS refused to work!

I may try changing the DHCP ranges again, see if I was doing something stupid last time...