Q: home sharing not showing shared account between Mac/PC

computer 1

iMac OS 10.10.5

iTunes 12.3.3

WiFi

Home sharing enabled, linked to my Apple ID, no security on what's shard in iTunes, no restrictions on shard content.

computer 2

Windows 10

iTunes 12.3.3

WiFi same network

home sharing enabled, linked to my Apple ID

when I turn on home sharing I never get the "ID" icon in the left hand side of the screen so I'm unable to view my content from computer 1 to computer 2. I've tried:

• Multiple reboots

• updating both windows and mac versions of iTunes to latest on both computers.

• logging off home sharing and logging back into it on both computers.

• Unauthorizing and Reauthorizing the Windows PC

• Running the network diagnostic in iTunes which succeeds on both computers.

Any thoughts?