I kept on trying to set up a homegroup once again yesterday and could not figure out why my systems could not see one another. Kept on doing troubleshooter changing passwords etc. I then played around with firewall and found out that was the reason. It worked fine while I took it off. But as soon as I enabled it again boom not working. Is there something I can do to fix this? Which settings? If I can't use the built in firewall, would a third party one work better?