What is blocked in the firewall?

Question

linux

I use Windows 10 with WSL and Ubuntu in it. Firewall - FreeFirewall. The default rule is a permission request. For Ubuntu.exe , wsl.exe , wslhosts.exe everything is allowed. With the firewall turned off, Ubuntu freely surfs the net. I turn on the firewall and the network becomes unavailable for it. I do not want to install a sniffer. Can someone tell me what else to allow him? The network from Ubuntu asks for nothing in the logs. Stupidly does not work and everything.

ИД Имя                      Счетчик  Направление      Пакеты            Байт | Направление      Пакеты            Байт
 -- ---                      -------  -----------      ------            ---- | -----------      ------            ----
 17 Native WiFi Filter Dr... Upper    Прием                24           2 872 | Передача             29           2 697
 16 VirtualBox NDIS Light... Upper    Прием                24           2 872 | Передача             29           2 697
 15 QoS Packet Scheduler     Upper    Прием                 0               0 | Передача             29           2 697
                                                                              |
 79 TCPIP (NDIS)             Lower    Прием                24           2 872 | Передача             29           2 697
 40 LLTDIO                   Lower    Прием                24           2 872 | Передача              0               0
 38 NDISUIO                  Lower    Прием                24           2 872 | Передача              0               0

D-Link DWA-125 Wireless N 150 USB Adapter(rev.A3)
    ИД: 1
    Драйвер: Dnetr28ux.sys
    ifIndex: 8

    Драйверы-фильтры:
        ИД Драйвер        Имя
        -- -------        ---
        17 nwifi.sys      Native WiFi Filter Driver
        16 VBoxNetLwf.sys VirtualBox NDIS Light-Weight Filter

Only here the gateway sys does not understand, only .exe.

And from VirtualBox, too, the network is not available.