Hello I am new in the management of computer networks and I would like help in configuring my network. In the next image there is summarily indicated as my network is composed.

The main problem is that I can't communicate Sky-Q Platinum and Sky Mini. After several investigations I understood that Sky Mini transmits a broadcasting signal to the UDP 1900 port of the SSDP type to signal its presence in the network.

Initially I thought of making a NAT with address 192.168.1.59 to 192.168.3.59 that shows me this address in the Network 192.168.1.x where Sky-Q Platinum is located. The problem is that it does not pass the Broadcast signal and then you don't see Sky-Q mini. How can I solve the problem if possible