Hi Ken
Glad you got your wireless connection working, but I've got to tell you that it was not possible to see ICMP playing a part in your connection problems.
You see, I was aware of this ICMP control, i.e. allowing or not allowing it, but only as a function/facility within my Norton Personal Firewall (software), I was not aware that modem/router manufacturers had incorporated this facility within a hardware firewall (there is no such facility within my own modem/router).
Still, we all live and learn.
Saying all that, Belkin's helpdesk should certainly have been aware of this feature and advised you to turn if off.
You see, back in the old days when I was first on dial-up, and still with Virgin (my old P2P throttling ISP), I had problems connecting to the Internet. The first thing Virgin's help desk asked was did I have a Norton's firewall and was ICMP enabled.
So you see, these are basic things a technical help desk should know.
Anyway, thanks for the solution to your connection problem, I am sure that before long another unhappy LW user is going to ask for a solution to their Belkin/Wireless connection problem.
UK Bob
PS: Here is the URL to some info on ICMP:
Internet Control Message Protocol - Wikipedia, the free encyclopedia