Insider Preview computer can no longer find existing homegroup.
Homegroup still exists and other 2 computers on 14393 are still functioning normally.
Any suggestion ?
Other than removing them and starting again ?
You're not alone. I've had this issue since RS2 began. First I couldn't join the homegroup at all, now I can join but none of my other computers can see my Insider PC.
Somehow I doubt removing and starting again will help, let me know if you try. The one saving grace to all this (for me at least) is I can still share everything across my network.
Ahhh, the joys of beta/alpha testing <grin>
Please be sure to report this in the feedback hub.