Wine Network Permissions

Newer versions of Linux allow granular permission control to grant only required permission to specified files. This allow Wine to open a raw sockets for normal user.

The command to give network permission to wine is:

sudo setcap cap_net_raw+epi /usr/bin/wine-preloader

In the past, only super user (root) could access raw sockets, and running Wine as root is a bad idea.

Source: Wine FAQ