The Wait for Session OSD indicates that the Sun Ray Client is waiting for its X Window session. The icon is displayed for a few seconds as part of the normal startup process.
If this icon is displayed for a long time, display traffic from the server is not arriving to the client. Some possible reasons for this problem are:
The network (routers, switches, firewalls) is not correctly transmitting UDP traffic from the server to the client.
The server is attempting to display one of the Server Policy icons, but the client is behind a NAT router or gateway.
The X server (Xnewt or Xsun) that is the source of the display traffic on the Sun Ray server side is not working properly. It might be crashed or hung.
The display manager (dtlogin on Oracle Solaris or gdm on Oracle Linux) has failed to start an X server for the session. It might be crashed, hung, or not configured properly. If you suspect that dtlogin configuration files have been corrupted, see Section 5.3, “How to Check and Fix Corrupted Configuration Files (Oracle Solaris)”.
