SSH locks up

[Bryan O'Neal]

So I have two nearly identical servers that lock out my ssh connection.
I will connect and be working fine and then nothing, total lock up.
Usually it is rite after I hit enter on a command and the output has
been displayed.  After which I am greeted with a prompt but I have no
controlee over the blinking cursor.  Any thought about how I can go
about figuring what is going wrong?  It seems totally random and I have
six SSh sessions at once to my go daddy server and only one will drop
out on my at a time.  The secure log seems to indicate that is a pam
issue, but I would expect not to be able to login if it was a pam issue.
What do you all think

Here is a clip from the secure log

Aug  5 13:15:12 myserver sshd[4280]: Accepted password for user_bryan
from 66.193.205.160 port 51738 ssh2

Aug  5 13:15:12 myserver sshd[4280]: pam_unix(sshd:session): session
opened for user user_bryan by (uid=0)

Aug  5 13:15:23 myserver su: pam_unix(su-l:session): session opened for
user root by user_bryan(uid=506)

Aug  5 13:16:44 myserver sshd[4454]: Accepted password for user_bryan
from 66.193.205.166 port 51739 ssh2

Aug  5 13:16:44 myserver sshd[4454]: pam_unix(sshd:session): session
opened for user user_bryan by (uid=0)

Aug  5 13:16:54 myserver su: pam_unix(su-l:session): session opened for
user root by user_bryan(uid=506)

Aug  5 13:17:57 myserver sshd[1406]: pam_unix(sshd:session): session
closed for user user_bryan

Aug  5 13:17:57 myserver su: pam_unix(su-l:session): session closed for
user root

Aug  5 13:24:46 myserver sshd[4454]: pam_unix(sshd:session): session
closed for user user_bryan

Aug  5 13:24:46 myserver su: pam_unix(su-l:session): session closed for
user root

Aug  5 13:35:09 myserver sshd[5418]: Accepted password for user_bryan
from 66.193.205.166 port 38322 ssh2

Aug  5 13:35:09 myserver sshd[5418]: pam_unix(sshd:session): session
opened for user user_bryan by (uid=0)

Aug  5 13:35:17 myserver su: pam_unix(su-l:session): session opened for
user root by user_bryan(uid=506)

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