I have an XP Pro SP3 laptop, and an XP Home SP3 netbook, both in the same workgroup, and both connected to the same wireless (PC to PC) network (no router involved).
The network is running WEP, as I couldn't get them to connect using WPA or WPA2.
The Windows Firewall is turned off, as Zone Alarm is installed, and Zone Alarm has been configured to allow the newly detected wireless network into the "trusted zone".
I have set the Wireless connections to use manual IP addresses, with subnet masks of 255.255.255.0, and each using the laptop's gateway and DNS addresses, as the laptop is connected to the Internet over USB wireless broadband. The manual IP addresses have been set to 10.1.1.101 & 10.1.1.102.
I can't ping the other PC, on either of the PCs.
Any ideas why?