I have two PC's (Windows 8 & Windows 7) connected on a network and homegroup. For some time I have difficulty with the Windows 8 pc always recognizing the Windows 7 pc on the network (in my computer). When I click on the icon or the arrow to open on the branches, I get that the path is not recognized and it cannot connect. Other times, it works without a problem.

Going the other way (seeing the Windows 8 pc on the Windows 7), there is never a problem. When I click diagnosis problem, nothing is ever found. I don't think its a Windows 8 vs Windows 7 problem, more with the network setup, but I'm just guessing. Any suggestions?