Issue in reboot

Hi,

Whenever I reboot this server remotely by using the command 'shutdown -r now' or 'reboot'. The server does not return to normal multi-user mode. It boots in single user mode.
To bring back the server, someone is required to connect via console and fire 'init 3'.

Please suggest on what can be the reason behind this and the solution?

OS: TRU UNIX 5.1B

hello
the runlevel that the unix system boots into is determined by the configuration file
/etc/inittab.
this file is read by the init (process) before booting the file .
You can edit the file to determine which runlevel you want to boot (permanently )
check the manual of the OS to locate that file or the file with similar properties.
Regards.