I have two WRT54GS units I setup to be node months ago and cannot remember the passwords to get into the setup as I want to upgrade the firmware in them for real deployment.

I have checked the /etc/httpsd.conf file and all are set to default root/hsmm but when I enter that it fails.

Is there any other way to fix this problem?

I am guessing your in fail safe node to get in without a password?

If so you need to run the mount_root command to mount the read write filesystem and view the password.