I'm running Windows 10 Pro 64-bit, version 1511, OS build 10586 on my desktop PC. I'm connecting to my Windows Home Server 2011 shares, my Surface Pro 3 and other Home Theater PCs - they're all connected to the same Homegroup.
When I go to File Explorer, click on Network, and then click on my Home Server (\\WHS2011-JGC), I get the following error:

I never get a prompt from my credentials, however, my local network is working as expected...as far as I can see.
If I go to File Explorer and try to access my Home Server directly by entering \\WHS2011-JGC and press enter, then I receive a prompt for my credentials. Once I enter them then I have access to my Home Server shares.
Any idea on what's going on here and how I can correct this? FYI - I've never encountered this issue on any of my PCs running Windows 7 and 8.1.
Thanks for any help you can offer here.