OPAC connection limit

[Len Davidson <len.davidson@xxxxxxxxxx>]

For the beginning of the new semester we had our usual bibliographic 
instruction class in a room full 30 PC, and for the first time we seemed to 
bump up against the limit of logins (we got 403 error after about 10 machines)

We have only 20 licences and the OPAC logins are using the patrons 
contention group that is set to 20 licences.

I am puzzled because last year, same exact class in same room, we did not 
have this problem.

Also, when I looked at the details of the OPAC logins (see below) it says 
of the 20 logins, 17 are used.  But then it only displays 7 rows when I say 
"Show current users"

Am I missing some phantom logins?   Thanks,  Len



GROUP NAME    MAX LOGINS      LOGINS IN USE    LOGINS REMAINING
LOGIN NAME    IP ADDRESS       TIME IN         LICENSE EXPIRATION

patrons               20                 17                   3
  web           147.106.20.114   13:14:20        13:16:20
  web           147.106.20.196   13:15:29        13:17:29
  web           147.106.20.105   13:16:04        13:18:04
  web           147.106.20.102   13:16:41        13:18:41
  web           67.74.68.80      13:14:39        13:16:39
  web           147.106.20.124   13:16:40        13:18:40
  web           147.106.20.113   13:15:39        13:17:39