Hi Allan,
Thanks so much for your post.
For testing purposes, you may want to try a wired connection to sustain the connection quality. WiFi has a wide variance of reliability. Also, when on a WiFi connection, please be sure to shut down other devices that may be utilizing bandwidth. Try giving your router a restart as well. This can also help with connection issues.
Please let us know how often you are getting disconnected and if you have ever been able to connect when choosing multiplayer.
Regards ^AH