Hi, I know this has been a while since the last post but I seem to have the same problem but both my desktop and my laptop have different names. So I tried to go and look into command prompt with ipconfig /all and found out that my desktop has its NODE TYPE to HYBRID and my laptop has its NODE TYPE to Diffusion.
If this is the problem I would really like to know what to do in order for my homegroup to work again.
Thank you!