I have two desktops (1 and 2), one laptop (3) all on the same network, all running
either XPhome-sp2 (1), XPPro-sp3 (2), and XPhome-sp2 (3), and all with
ZoneAlarm Security Suite version 7.0.483.000.
The desktop
XP-sp3 (2)
cannot access nor ping
the desktop with XP-sp2 (1), however the laptop (3)
has no problem with access to (1 or 2) or vice versa.
I am able to share a printer (and files) which is connected to (2) from (1) and (3).

Bottom line:
I am unable to access desktop (1) from desktop (2), the laptop (3) has no problem.All are connected via a Linksys wireless router and have no problem each connecting to the internet (cable modem to router).

I have placed the network, router ip, ip for each computer, ip for the DNS server,
ip for the loopback adapter, ip for the DHCP server with subnet mask all in the trusted zone.
I have verified that all are on the same workgroup.
I have compared zonealarm settings between all the computers, and they seem to be the same.
I was able to network between the two desktops when McAfee was installed on both, so I suspect it's something with Zonealarm?

Any help would be appreciated!

Operating System:Windows XP Home Edition
Software Version:
Product Name:ZoneAlarm Internet Security Suite