Homegroup Issues

For months (perhaps even years) I have been using the same homegroup with no issues. As of late my main desktop computer cannot seem to access the other computers on the homegroup. It can see the others and it shows the shared folders but I cannot seem to get past that point. Image: http://imageshack.us/a/img844/7770/t9hj.png This is what I see. I believe it's supposed to look like...