NetworkStreaming Problems in UBUNTU 18.04/18.10

Since Ubuntu 18.04 my Windows network doesn’t work fully.
I can access Windows computers from my Linux machine by connecting to their IP address, but Windows machines can’t find my Linux machine on the network.
Also, I can’t stream music to my SONOS system or stream video via Gerbera from my Linux machine.
I’ve tried editing the smb.conf file to no avail.
Anyone any ideas?

Problem seems to have been sorted after installing Ubuntu 19.04.