Media Share Network Streaming - CRASHES

I’m having the EXACT same issue. Netflix is fine, never crashes, but when playing local content Via Windows share the unit will freeze randomly, sometimes 20 minutes in and sometimes 40 minutes in. It will either lock with the image freezing, or turn the screen black and freeze. Only solution is to plug it off the power. This started happening yesterday, while I’ve updated to the last firmware about 2 months ago. 

There were no changes made to my network settings or router, nor to my PC. 

Please help!