resource not available

i took my laptop to a strange network the other day and tried to fire
up sfs.  it complained immediately (no delay) with a "resource not
available".

	$ sfskey login mark@myhost

i tried going manually to port 4, but it connected immediately.

	nc -v myhost 4

obviously, nc isn't using the sfs protocol, but it did connect
immediately, thus indicating to me that it was not a firewall issue.
just to be sure, i turned off the fw on my laptop, but had the same
results.

there were no messages in my laptop logs either.  running sfskey with
'-v' didn't give but one more message which didn't help.

can anyone explain to me why this would happen?  how can i avoid it
in the future.  btw, may laptop was running 0.8 which is known to
work with my server.

-- 
Mark Smith
mark at winksmith dot com
mark at tux dot org
nova-instructor at tux dot org
F: 775-522-8479