That depends on the method you use to configure your Sun Ray. There is a bunch of different methods and which one to use depends on your network topology and other constraints or preferences.

If you can't configure your router to use the same subnet as your prior installation did and statically assign the same IP address to the server that it previously had, then you have to delete and recreate any existing DHCP (e.g. utadm), DNS or DTU GUI configuration that you have set up on the server or DTU to match your new network parameters.

If you don't know how you are provisioning the DTU network parameters, to find out how your Sun Ray gets its network settings use
  /opt/SUNWut/sbin/utquery <IP of DTU>

On the server side
  /opt/SUNWut/sbin/utgstatus
  /opt/SUNWut/sbin/utadm -l
may provide relevant information.

The output of these command might help us help you.

- Jörg
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It's a good point here that Jorg pointed out about the DHCP config.....

I forgot to mention last night as I was completely over tired that you can also turn the DHCP server within your router off! You mentioned it was a D-Link so I don't think you can configure specific option codes in there as most consumer based routers won't allow you due to limitations of the GUI web interface.

The second method or trick you can use here is to provision your SRSS server as a DHCP server by enabling DHCP using svcadm then add the specifi option codes in; then via broadcast the Ray should detect it and be assigned a new IP address according to the new subnet and will find the server with the embedded option 49 code.

You should be up and running again then :-)

HTH

Kaya
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