The link below connects you to the Sonos Groups accessible on the banner across the top of the Sonos Community landing page. You may have to join the specified Group before the link will open. I’m already a member so I have no difficulties accessing the information contained in the link. As soon as you open the link there is an update on using the Era 300 with a PC that may help.

Note: There’s one caveat to joining a Group….you will be notified each time a new Post is created for that Group. Just want to mention that upfront as some members consider any unsolicited alerts from Sonos as a form of advertising that’s not appreciasted. So consider yourself forewarned. 

I got it sorted out. I had the ERA 300s set up as surround so I had to undo that to setup as stereo and it worked just fantastic. Now I have a Move 2 on the way!