Just remember to restart the Starbook settings, then see if the IP changes, and THEN get out of Settings (go back to scope mode or chart mode) - this is vital in ANY of the Starbooks as NOTHING takes effect until you are back on the main screens.
If all else fails, perhaps reflashing the firmwre might be a good idea. Never had a single issue connecting that Starbook to the laptop to do updates etc.
A snippet:
b) Connection via LAN or Router
If connected to a LAN or a router that has DHCP enabled, the controller will acquire a network address from the DHCP server automatically. Use either the “About Star Book” menu option on the controller or the LAN or router administration software to determine the IP address that has been allocated. Now follow the procedure to upgrade the firmware as if using a direct PC connection and enter the automatically assigned IP address when prompted by the upgrade program.
If you are unsure of the network settings, contact your network administrator.
If DHCP is not enabled, follow the procedure for direct PC connection.
Or, just use Starbook - it does everything Skysafari and Stellarium does. In all the years I used Starbook, I never used anything BUT the Starbook itself, including imaging.
There is also a bunch of ideas you could try from Vixen themselves. Most is about the update procedure, but may give some hints, as you need to remember, these Starbooks were not designed from the outset to be WIFI driven (WIFI dongles were not even available commercially back then) - the fact they can be is a nice-to-have:
https://www.vixen.co.jp/en/at/update/sb.html
http://www.vixenamerica.com/technica...ookupdates.asp
https://www.vixenoptics.co.uk/Pages/...re_update.html