> When I click on login, I'm moved to an SSL page.  When I try to login
> on that
> SSL page with a username/password that used to work under 15.0, and hit
> submit,
>  I get the message:
>
> --------------------------------------------------------------------
> An invalid response was received from the authentication server. You
> may want
> to try logging in again, or contacting the webmaster.
>
> Unknown command - "SSL". Try HELP.
> --------------------------------------------------------------------

I am guessing that WA is using mailboxes rather than TCP/IP to communicate with LISTSERV. Mailboxes are used as a fallback if communication could not be established with TCP/IP, usually because the LISTSERV_TCPGUI_IPADDR logical is undefined in the context of the WA CGI process.

  Eric