Windows clients can't access share

[SmugAchiever999]

Hi all! I have had a TruNAS server running off of an old gaming machine for a while now and I have just noticed that Windows clients can't connect to the server...... Macs and iPhones work fine, but Windows clients just won't connect and give an error saying "Windows cannot access TRUNAS" and the description basically says make sure the machine is on and you are allowed to access it. It worked before, so I think that either user error or an update might have triggered this. I have a windows share set up as well so that shouldn't be the issue... right? Sorry, I am very new tp this, so please forgive me for my knowledge shortcomings. Does anyone know why this could be? Thanks in advance!!

Specs: AMD FX-8320, 2x8 DDR3 Memory @ stock speeds, Zotac GTX 960 2GB, Gigabyte GA series motherboard (Micro ATX), Ethernet, 1x 1TB Laptop Form Factor HDD (Boot), and 1x 2TB Standard Form Factor HDD (Pool).