Is there possible somehow force disconnect and then login again? I googled for a while, network classes is too complicated for me unfortunately

Lua.LuaDoString("Logout();");
Thread.Sleep(3 * 60 * 1000);
Keyboard.PressKey(Memory.WowMemory.Memory.WindowHandle, Keys.Escape);

Maybe that works. I guess it should. Might have to call Keyboard.PressKey on new thread.
Such as

private static async void TurnSpiritRezzOff()
{
  await Task.Delay(30000);
  await Task.Run(() => {
    Keyboard.PressKey(Memory.WowMemory.Memory.WindowHandle, Keys.Escape);
  });
}