router woes

Hi. I have a USR 8054. I'm trying to change the firewall rules, as I can't
get traceroute to work and they might be at fault. But when I go to Access
-> Firewall Info, changes that I make don't take effect. For example, a
current rule is

Firewall [x] Active [ ] Inactive
Title pseudo-HTTP (81/tcp -> 80/tcp)
Action [x] Allow [ ] Deny
Timeout 300 seconds

Source
Interface WAN
IP Range Start *
IP Range End (blank)

Destination
Interface LAN
IP Range Start 192.168.1.11
IP Range End (blank)

Protocol TCP
Port Range 80-81

I wish to change the name (since this rule doesn't change the packets) and
the range (since 80/tcp from WAN should be blocked), but if I make a change
and hit [Update] (after filling in the Source/Destination End blanks, which
it complained about), the router immediately resumes the previous display,
without going to "The device is restarting...". F5 reveals no change.
I've tried five different browsers (Opera/Linux, Netscape/Linux, Opera/XP,
IE/XP, IE/W2K). I successfully made changes in another area of the router's
configuration.

I've reset the router (using Tools -> Restart), to no avail. What should I
do next?

--
-eben (E-Mail Removed)m home.tampabay.rr.com/hactar

Hanlon's Razor: "Never attribute to malice that which can be
adequately explained by stupidity." Derived from Robert Heinlein