SSH connection and /etc/hosts.allow file

System info:
SunOS rattler 5.9 Generic_118558-03 sun4u sparc SUNW,Sun-Fire-480R
SSH-2.4.0

My users sometime log in to my server via ssh from home through
firewall Port 22. I have IP entries in my server's /etc/hosts.allow
file. My users have been doing this a few years successfully using
Comcast DHCP addresses. I get the IP address from my syslog file when
the user tries to connect and add it to my /etc/hosts.allow.

I just added a new verizon IP for a user. It's a DHCP address
but I can nslookup the IP successfully.Here is the entry:

Mar 2 07:56:41 rattler sshd[5669]: [ID 504574 auth.warning] twist
pool-70-22-31-83.balt.east.verizon.net to /bin/echo " Permission denied --
access is restricted in accordance with United States Government policy."

Then I add the IP to my /etc/hosts.allow file:

ALL: 70.22.31.83

This is the first time trying to add a Verizon IP to my file. A netstat
shows it connecting to the server's port:

rattler.ssh pool-70-22-31-83.balt.east.verizon.net.49194 65513 0 49780
0 ESTABLISHED

but then it just hangs. No errors show up in the syslog file.
The user is on a Mac. What could be the problem? I will summarize.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Carolyn Mayr (IT Specialist/ITSD Support) Voice: 410-293-6808 (sec-6800)
Computer Science Department, DivMath&Sci Email:carolyn at cs.usna.edu
572M Holloway Road, Michelson Hall, 9F FAX: 410-293-2686
U.S. Naval Academy WWW: http://www.cs.usna.edu
Annapolis, MD 21402-5002 USNA: 410-293-1000
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[1829 byte] By [CodeProf.com] at [2007-12-25 5:53:00]