Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!wuarchive!udel!haven!decuac!avolio
From: avolio@decuac.DEC.COM (Frederick M. Avolio)
Newsgroups: comp.unix.ultrix
Subject: Re: Modem Problems under ULTRIX 4.1
Keywords: modem, ULTRIX 4.1
Message-ID: <1991Mar28.133500.24895@decuac.dec.com>
Date: 28 Mar 91 13:35:00 GMT
References: <9648@cg-atla.UUCP>
Reply-To: avolio@decuac.DEC.COM (Frederick M. Avolio)
Distribution: comp
Organization: Digital Equipment Corp., Washington ULTRIX Resource Center
Lines: 9

Worked fine before under what?  4.0?  Or 3.something?  Check 
the permissions and the group mode on tip and the uucp 
programs.  (You can use setld to verify the subset they are in
-- for example setld -v UDTCOMM410 -- to see if the modes, etc.
are correct.)  Sounds like tip and/or uucp are not running with
setgid mode turned on and/or are not in a group allowing
them to open the tty.  (Need to be in group tty.  What does a
ls -lg on your executables and on the relevant /dev/tty* files
show?)