How to use daz3d offline while being online?

Hello,
so I bought a new windows tablet where I installed a firewall (windows 10 firewall control pro) to block everything but my email program thunderbird. But when I do that and want to start daz3d it says that it can't establish a connection to the database and then I can't access any content of my library that I bought. When I set the tablet to offline mode though the message dosen't appear but I can't access the internet obviously.
How do I do it so that I can use daz3d without having to be offline but also the program not sending and receiving data? I block everything in order to not use up my mobile bandwidth for useless data but I still would like to receive emails.
Ps: yes I do have daz in work offline mode it does send and receives a lot of data regardless.
Comments
The database needs access to an internal port, it doesn't need access to the internet. Look under Preferences/CMS settings and then open the firewall and set it to allow access to the port you find there.