SMB issues from my Android devices.

I have been using kodi for a long time, but I have recently run into an issue with my android devices. I have a central computer with all my media on it. I have my all my files shared with no password. I have 2 tvs with kodi boxes hooked to them. 1 runs windows 7 and jarvis and connects to smb fine. My other tv runs a nvidia shield box with jarvis and i can see my computer and all the folders, but when i try and add one i get the “invalid argument” error. I have tried some other android apps and also cannot connect to smb. I also tried my android phone with the same results. I just replaced an aging gbox mx2 with the nvidia box because of this. The mx2 was running 14.2 doing the same thing. Just a week ago I was having no issues connecting my android devices through smb.

I have tried everything I can think of and am at my wits end. I’m hoping someone can help me with this. Thanks.