Occasionally you may find that your network shares just stop working, when you’ve exhausted all possibilities and the only solution is a reboot, please try the following!
Open an elevated command prompt and type :
net stop "Server"
followed by:
net start "Server"
This won’t find the heart of the problem but will at least get everything working again without a restart!
if it is a regular occurrence try the following in a bat file and have task scheduler run it once every day at midnight
@echo off net stop "Server" net start "Server"