> I'm having the same problem. I just bought a WRT54G v5.0 and my
> SunRocket Gizmo (AC-211-SR) and my Sipura SPA-1001 will not register.
> It works fine with through my Netgear WGR614 v5.
Well, after an hour of a hard work I have just got a first success - my
ATCOM AT-320 connects now to my voip service provider and works fine !!!
Port forwarding is the right direction

But Sipura SPA-841 is still
"dead".
Does anybody know how to switch off a firewall in this router ?????
> I might see if they have any WRT54G v4 or earlier routers left at the
> store.
Lucky you
Misiu