Orinoco Silver and Buffalo router Please Help!!

[stroods]

I have run the wireless network as a LAN for a while with no problems - orinoco silver on laptop and decktop wired to Buffalo wireless router

I just got cable and hooked up the WAN port of the router. At the same time I put on Zone Alarm Pro.

The desktop hooks up fine - as does the laptop if I hook it up to the router with Cat 5. Both appear on "network neighbourhood" on win 98 se

But if I disconnect and reboot with the wireless Orinoco in the laptop I have problems

It gets good signal to the airstation and the airstation recognises the laptop on its diagnostics.

I can ping the Laptop from the Desktop with 60 / 20 / 30 ns delay. But the laptop won't ping anything (inc airstation address and desktop).

But the laptopn will not appeaer on the desktop "Network neighbourhood" and vice versa.
Plus I can't hook up to the net via the laptop (times out)

I've tried switching off Zone Alarm and updating drivers but no good.

Any help please.

[Greenstead]

I'm not too clear on your configuration. It might help if you make it clearer.
What OS is on each PC ?
Which PC is Zonealarm Pro on ?
What model router is it ?
Are you using the LAN DHCP service in the router or setting static IPs?
How did you connect to the internet before cable? i.e. when everything was working.
Have you loaded any software supplied by the cable ISP?

First reaction would be to suspect Zonealarm Pro. I have heard other people have problems configuring it. I would suggest you disable it, uninstall it, and then delete any left over files. Just until you get the basic connectivity working.
Try that and post back.