Well, seems your "new" lan is using IPv6. Does the printer work ok in that environment? If not, you could try to manually set IPv4 on both the printer and the client laptop, and try to connect that way. In the laptop, you can always navigate to the Network adapter properties, and turn off IPv6. Printers also have manual network setup via their interface/buttons.
If you know that the network does support IPv4 addressing, just turn off IPv6 in your laptop for a while and try to find the printer and install the printer drivers that way.
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