There are more settings you should "officially" be using, might be worth checking the top ones.

File and Printer sharing exception > Enabled for *
Prohibit Notification > Enabled
Allow remote administration exception > Enabled for *
Define Port Exceptions > Enabled - Show - Add -

52965:TCP:localsubnet:enabled:SOLUS 3 Deployment service
52966:TCP:localsubnet:enabled:SOLUS 3 Agent
135:TCP:localsubnet:enabled:WMI
8739:TCP:localsubnet:enabled:SOLUS 3 Agent UI
Steve